| 释义 |
棘爪jízhuǎ拨动棘轮做间歇运动的零件。棘爪由连杆带动做往复运动,从而带动棘轮做单向运动。{pawl; piece of metal fit into the teeth of a ratchet and linked to a connecting rod, so that when the connecting rod moves back and forth in sync with the pawl, the ratchet is driven in a one-way movement} |