vertical wedge cut

基本解释立面楔形开挖

网络释义

1)vertical wedge cut,立面楔形开挖2)cylinder excavation section,筒形开挖断面3)three dimensional excavation,立体开挖4)Shaft exca vation,立井开挖5)wedge-shaped section,楔形切面6)quoins;lozenges,楔形面

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