![Photo taken on Dec. 10, 2018 shows the railway arch bridge across the Nujiang River in southwest China\'s Yunnan Province. With a grand arch bridge erected on Monday morning, Chinese constructors have built the longest-spanning railway arch bridge with a single span of 490 meters. The bridge is a key project of the 220-km-long Dali-Ruili railway which is a key section of the China-Myanmar international railway corridor linking Kunming, the provincial capital of Yunnan, with Yangon of Myanmar. (Xinhua)](http://www.ecns.cn/hd/2018/12/11/17102f52e4df442898b8397b51859ea9.jpg)
Photo taken on Dec. 10, 2018 shows the railway arch bridge across the Nujiang River in southwest China's Yunnan Province. With a grand arch bridge erected on Monday morning, Chinese constructors have built the longest-spanning railway arch bridge with a single span of 490 meters. The bridge is a key project of the 220-km-long Dali-Ruili railway which is a key section of the China-Myanmar international railway corridor linking Kunming, the provincial capital of Yunnan, with Yangon of Myanmar. (Xinhua)
![Aerial photo taken on Dec. 9, 2018 shows the railway arch bridge across the Nujiang River in southwest China\'s Yunnan Province. With a grand arch bridge erected on Monday morning, Chinese constructors have built the longest-spanning railway arch bridge with a single span of 490 meters. The bridge is a key project of the 220-km-long Dali-Ruili railway which is a key section of the China-Myanmar international railway corridor linking Kunming, the provincial capital of Yunnan, with Yangon of Myanmar. (Xinhua)](http://www.ecns.cn/hd/2018/12/11/4683f2fd8fab4c4881c6e28023a96204.jpg)
Aerial photo taken on Dec. 9, 2018 shows the railway arch bridge across the Nujiang River in southwest China's Yunnan Province. With a grand arch bridge erected on Monday morning, Chinese constructors have built the longest-spanning railway arch bridge with a single span of 490 meters. The bridge is a key project of the 220-km-long Dali-Ruili railway which is a key section of the China-Myanmar international railway corridor linking Kunming, the provincial capital of Yunnan, with Yangon of Myanmar. (Xinhua)
![Photo taken on Dec. 9, 2018 shows the construction site of a railway arch bridge across the Nujiang River in southwest China\'s Yunnan Province. With a grand arch bridge erected on Monday morning, Chinese constructors have built the longest-spanning railway arch bridge with a single span of 490 meters. The bridge is a key project of the 220-km-long Dali-Ruili railway which is a key section of the China-Myanmar international railway corridor linking Kunming, the provincial capital of Yunnan, with Yangon of Myanmar. (Xinhua)](http://www.ecns.cn/hd/2018/12/11/da549c1af6d14099b3a0347f03e5d631.jpg)
Photo taken on Dec. 9, 2018 shows the construction site of a railway arch bridge across the Nujiang River in southwest China's Yunnan Province. With a grand arch bridge erected on Monday morning, Chinese constructors have built the longest-spanning railway arch bridge with a single span of 490 meters. The bridge is a key project of the 220-km-long Dali-Ruili railway which is a key section of the China-Myanmar international railway corridor linking Kunming, the provincial capital of Yunnan, with Yangon of Myanmar. (Xinhua)