ratchetn.棘轮;棘齿v.(使)渐进=rachet.
ratchetting latch棘爪锁紧装置
ratchet shakedown棘轮安定
ratchet mechanism棘轮机构,棘轮传动装置
ratchet type jack伞齿轮式起重器
ratchet brace bit棘轮摇钻钻头
ratcheting device棘轮装置
ratchet elbow lock棘轮式肘关节锁
ratchetting effect棘轮效应
Ratchetting strain棘轮应变
ratchet screw jack棘轮螺旋起重器