- duplicate gate
- 副: assistant
- 闸门: sluice gate; gate; water gat ...
- 开关副闸刀: auxiliary blade of switch
- 闸门: 1.(水闸) sluice gate; gate; water gate2.(船闸) lock gate3.[机械工程] throttle valve; strobe; paddle; clough; paddle door; shutter; restrictor; wicket; penstock
- 单闸门: simple lock
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