roof drain 中文意思是什麼
roof drain
解釋
屋頂落水頭-
Standard test method for water capture and media retention of geocomposite drain layers for green roof systems
新暴露頂板系統用土工合成排水層吸水和介質保持的標準試驗方法 -
I fell out of a window. . some friends had a roof terrace on the landing before their apartment, and i fell off the drain pipe
那時我從窗戶掉了下去，朋友的公寓有個露臺，落水管斷了，我從三樓掉了下來。 -
Specification for polyethylene pipe and fittings for roof drain systems
屋頂排水系統用聚乙烯管道和配件規范 -
Standard specification for polyethylene pipe and fittings for roof drain systems
屋頂排水系統用聚乙烯管和配件的標準規范
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