lift-lock [水运] 井式船闸
single lift lock 单级闸门 ; 单级船闸
lift lock arm 提升式舱口盖扳手
double-lift lock 二级船闸
single-lift lock 单级船闸
moderate lift lock 中水头船闸
high-lift lock 高水头船闸
Safety legs and lift lock out pins.
安全的木头支架和升降式的止动销。
The cavitation on culvert valve of high lift lock is a knotty, wide - spread problem to be solved anxiously.
高水头船闸输水阀门空化是一项普遍存在、急待解决的课题。
Safety features including: identifying trees, rocks and obstacles, sensor equipped bumpers, mower lift detection and child lock.
安全装置有：识别树枝、石头、障碍物； 具有缓冲特征的传感器； 割草机升降装置以及儿童锁。
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