您要查找的是不是：
- 闸watergate
- 闸阀gate(brake; shutoff; shut-off) valve
- 大闸蟹hairy crab
- 闸板flashboard
- 晶闸管thyristor
- 分闸separating brake
- 抱闸internal contracting brake
- 刀闸disconnecting link
- 闸板阀slide valve
- 道闸banister
- 关闸apply the brake
- 我们的船过闸驶入运河。Our ship locked into the canal.
- 拉闸operate a switch
- 丁家闸墓室壁画tomb chamber mural paintings in Dingjiazha
- Ｖ形槽闸V-notch weir
- 安全闸safety brake
- 节制闸check gate
- 保护闸guard lock
- 保险闸safety brake
- 备用闸emergency lock
