![[Provincial key projects] The "Yong'an" shield machine of the Guifengshan Tunnel of the Zhuhai-Zhaoqing High-speed Railway has exceeded 3,000 meters of excavation](/upfiles/2025-05-30-7b80e128-73c4-4662-a656-b510f2d2016a.jpg)
[Provincial key projects] The "Yong'an" shield machine of the Guifengshan Tunnel of the Zhuhai-Zhaoqing High-speed Railway has exceeded 3,000 meters of excavation
On May 21, the Yongan shield machine of the Guifengshan Tunnel of the Zhuhai-Zhaoqing High-speed R...
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