1. 锁止腔：锁止式制动气室 lock brake chamber | 锁止腔 lock chamber | 琐止弹簧 lock spring

2. 闸室：lock 船闸 | lock chamber 闸室 | lock gate 闸门

3. 闸段：lock chamber 水闸 | lock chamber 闸段 | lock cock 带锁旋塞

4. 水闸：lock canal 船闸运河 | lock chamber 水闸 | lock chamber 闸段

noun

1. enclosure consisting of a section of canal that can be closed to control the water level
used to raise or lower vessels that pass through it

Synonym: lock