wedge gate flooding valve的意思|示意

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楔形泛水闸阀

楔形通海阀 ... wedge bolt 楔形螺栓 wedge gate flooding valve 楔形通海阀 wedge gate flooding valve 楔形通海闸阀 ...

楔形通海闸阀 ... gate-valve chamber 闸阀室 wedge gate flooding valve 楔形通海闸阀 ; 楔形通海阀 gate turn valve 旋转炉门 ...