Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

An aerial drone photo shows the construction site of a bridge along the southern extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

An aerial drone photo shows the construction site of a bridge (above) along the southern extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

An aerial drone photo shows the construction site of a bridge along the southern extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Workers are pictured at the construction site of a bridge along the southern extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

An aerial drone photo shows the construction site of a bridge along the southern extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

A worker is pictured at the construction site of a bridge along the southern extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

Construction site of a bridge along the southern extension project of Weng'an-Machangping Railway

An aerial drone photo shows the construction site of a bridge (L) along the south extension project of Weng'an-Machangping Railway in southwest China's Guizhou Province, November 16, 2025. The beam erection and track laying work of the southern part of the south-to-north extension of Weng'an-Machangping Railway has been successfully completed on Sunday. The 148-kilometer-long south-to-north extension project of Weng'an-Machangping Railway is a key project for resource-oriented railways in Guizhou Province. Photo by Yang Wenbin/Xinhua/ABACAPRESS.COM

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

Tower Erection in Taizhou

Tower Erection in Taizhou

TAIZHOU, CHINA - SEPTEMBER 24, 2024 - An H215 helicopter of State Grid Space Technology Corporation erecting a steel tower at No. 84 of the 220 kV Dutang Line over Changrong town in Taizhou, Jiangsu province, China, September 24, 2024.

XINHUA PHOTOS OF THE DAY

XINHUA PHOTOS OF THE DAY

(240701) -- BEIJING, July 1, 2024 Photo by Xinhua/ABACAPRESS.COM) -- An aerial drone photo taken on June 30, 2024 shows a view of the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

(240630) -- WENCHANG, June 30, 2024 Photo by Xinhua/ABACAPRESS.COM) -- This photo taken on June 30, 2024 shows a scene during a rocket launch simulation rehearsal at the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

(240630) -- WENCHANG, June 30, 2024 Photo by Xinhua/ABACAPRESS.COM) -- This photo taken on June 30, 2024 shows a scene during a rocket launch simulation rehearsal at the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

(240630) -- WENCHANG, June 30, 2024 Photo by Xinhua/ABACAPRESS.COM) -- An aerial drone photo taken on June 30, 2024 shows a view of the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

(240630) -- WENCHANG, June 30, 2024 Photo by Xinhua/ABACAPRESS.COM) -- This photo taken on June 30, 2024 shows a scene during a rocket launch simulation rehearsal at the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

(240630) -- WENCHANG, June 30, 2024 Photo by Xinhua/ABACAPRESS.COM) -- This photo taken on June 30, 2024 shows a scene during a rocket launch simulation rehearsal at the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

CHINA-HAINAN-WENCHANG-COMMERCIAL SPACECRAFT LAUNCH SITE-REHEARSAL (CN)

(240630) -- WENCHANG, June 30, 2024 Photo by Xinhua/ABACAPRESS.COM) -- An aerial drone photo taken on June 30, 2024 shows a view of the commercial spacecraft launch site in south China's Hainan Province. China's first commercial spacecraft launch site is ready for operations in south China's Hainan Province as of Sunday, having completed a rocket launch simulation rehearsal using its two launch pads. According to the Hainan International Commercial Aerospace Launch Co., Ltd. (HICAL), which built and operates the launch site, the exercises performed using the launch pads included water spraying and deluge system cooling, as well as a rocket lifting arm erection test. Following assessments, HICAL confirmed that the site is operational for launch missions. Photo by Xinhua/ABACAPRESS.COM/Pu Xiaoxu)

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

UHVDC Transmission Line Erection

UHVDC Transmission Line Erection

LESHAN, CHINA - APRIL 24, 2024 - Construction workers erect a ｡ﾀ800 kV UHVDC transmission line from the upper reaches of the Jinsha River to Hubei province in Leshan city, Sichuan province, China, April 24, 2024.

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

(231121) -- CHONGQING, Nov. 21, 2023 (Xinhua) -- Workers conduct box girder erection work at the construction site of the Louwan grand bridge on the Chongqing-Kunming high-speed railway in southwest China's Chongqing Municipality, Nov. 21, 2023. The erection task of all box girders along a local section of a high-speed railway linking Chongqing, southwest China, and Kunming, capital of southwest China's Yunnan Province, was completed on Tuesday. The 699-kilometer-long Chongqing-Kunming high-speed railway, with a designed speed of 350 kilometers per hour, is a key constituent of the railway corridor linking China's capital Beijing and Kunming. (Xinhua/Tang Yi)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

(231121) -- CHONGQING, Nov. 21, 2023 (Xinhua) -- Workers conduct box girder erection work at the construction site of the Louwan grand bridge on the Chongqing-Kunming high-speed railway in southwest China's Chongqing Municipality, Nov. 21, 2023. The erection task of all box girders along a local section of a high-speed railway linking Chongqing, southwest China, and Kunming, capital of southwest China's Yunnan Province, was completed on Tuesday. The 699-kilometer-long Chongqing-Kunming high-speed railway, with a designed speed of 350 kilometers per hour, is a key constituent of the railway corridor linking China's capital Beijing and Kunming. (Xinhua/Tang Yi)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

(231121) -- CHONGQING, Nov. 21, 2023 (Xinhua) -- Workers conduct box girder erection work at the construction site of the Louwan grand bridge on the Chongqing-Kunming high-speed railway in southwest China's Chongqing Municipality, Nov. 21, 2023. The erection task of all box girders along a local section of a high-speed railway linking Chongqing, southwest China, and Kunming, capital of southwest China's Yunnan Province, was completed on Tuesday. The 699-kilometer-long Chongqing-Kunming high-speed railway, with a designed speed of 350 kilometers per hour, is a key constituent of the railway corridor linking China's capital Beijing and Kunming. (Xinhua/Tang Yi)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

CHINA-CHONGQING-HIGH-SPEED RAILWAY-CONSTRUCTION (CN)

(231121) -- CHONGQING, Nov. 21, 2023 (Xinhua) -- A worker is engaged in conducting box girder erection work at the construction site of the Louwan grand bridge on the Chongqing-Kunming high-speed railway in southwest China's Chongqing Municipality, Nov. 21, 2023. The erection task of all box girders along a local section of a high-speed railway linking Chongqing, southwest China, and Kunming, capital of southwest China's Yunnan Province, was completed on Tuesday. The 699-kilometer-long Chongqing-Kunming high-speed railway, with a designed speed of 350 kilometers per hour, is a key constituent of the railway corridor linking China's capital Beijing and Kunming. (Xinhua/Tang Yi)