bottom outer casing

基本解釋

• [土木建筑工程]外下缸

英漢例句

雙語例句

• The utility model is provided with an outlet at the bottom of the outer casing, wherein the outlet is provided with a plug capable of opening and closing.
  本實用新型在外罩 底部設有出水孔，在出水孔設有可打開和關閉的堵塞；
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專業(yè)釋義

土木建筑工程

• 外下缸