短語詞組短語rock excavation and support 洞室圍巖開挖與支護excavation and support scheme 開挖及支護方案excavation face support 掘進工作麪支護excavation and support sequence 施工時序excavation pit support 基坑支護excavation and support 開挖與支護excavation and support technology 掘支技術Tunnel excavation and support 隧道開挖與支護excavation and support processes 開挖支護過程 返回 excavation support