片语
pre-construction preparation施工前準备
pre-construction phase工程建设前期
thread pre-construction线程预构
pre-reinforced construction预加固措施
pre-construction investigation施工前调查
pre-construction work基本建设前期工作
pre-construction period施工前阶段
pre-construction prepare施工前準备
pre-construction document工程準备阶段文件