arch culvert 中文意思是什麼
arch culvert
解釋
拱涵-
Two technical problems in the construction of rural highway ' s stone - arch culvert
農村公路石拱涵施工中的兩個技術問題 -
Standard specification for reinforced concrete arch culvert, storm drain, and sewer pipe
鋼筋混凝土製拱形排水管雨水管和污水管的標準規范 -
Standard specification for reinforced concrete arch culvert, storm drain, and sewer pipe metric
鋼筋混凝土製拱形排水管雨水管和污水管的標準規范
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