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我队坑探过去是没有基础的,施工以来,人员工具都是从无到有,自小而逐渐扩大的。因为新工人多,技术力量非常薄弱,部分硐子顶板为页岩、节理较发
There is no foundation for our team to ponder over the past. Since the construction, staff tools have grown up from scratch and grew up. Because of the large number of new workers, the technical force is very weak. Part of the roof of the tunnel is shale.