... 门操作器：door operators 门操纵机构：gate operator 门柄：handle ...
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短语
阀门手柄
valve handle
有柄亚门
[无脊椎]
Pelmatozoa
举升门锁芯手柄
handle liftgate lock
;
handle, liftgate lock
曲柄箱导门
Crank case door
车门手柄弹簧
door handle spring
执柄门锁
mortise lock with lever handle
进给装置阀门摇柄
feeder gate crank