The deep excavation supporting measures are key part of foundation construction.
深基坑支护措施是基础工程施工的关键环节。
Deep excavation is a complex systematic project, just need a long-time, in-depth study.
深基坑工程是一个复杂的系统工程，还需长期、深入的研究。
The ship dock excavation is a deep pit excavation.
船坞开挖属深基坑开挖，是危险性较大的分项工程。
The ship dock excavation is a deep pit excavation.
船坞开挖属深基坑开挖，是危险性较大的分项工程。
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