The storm water division sump to be constructed in two times, first construction is for sole-plate and part of wall board; second construction is for wall top plate.
雨水分流集水井分两次施工，第一次为底板和部分墙板，第二次为墙顶板一次施工。
The storm water division sump to be constructed in two times, first construction is for sole-plate and part of wall board; second construction is for wall top plate.
雨水分流集水井分两次施工，第一次为底板和部分墙板，第二次为墙顶板一次施工。
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