China has successfully constructed three super-large caliber natural gas pipeline with minimum spacing for the first time.
This represents a technological breakthrough in natural gas pipeline construction, according to Petro China.
The Zhongwei No.2 Station of West-to-East Gas Transmission Line 3, located in Zhongwei City, Ningxia Hui Autonomous Region, is near the ecologically fragile Tengger Desert.
原文地址：http://en.people.cn/n3/2022/0406/c90000-10080462.html