片语
excavation pit support基坑支护
Tunnel excavation and support隧道开挖与支护
excavation and support processes开挖支护过程
excavation and support technology掘支技术
excavation and support开挖与支护
rock excavation and support洞室围巖开挖与支护
excavation and support sequence施工时序
excavation face support掘进工作面支护
excavation and support scheme开挖及支护方案