falling pawl

• 棘爪,下降卡子

falling pawl的用法和样例：

例句

1. The indexing pawl advances a fastener into operative engagement with the feed pawl upon movement of the second canister portion from the open position to the closed position.
   当第二筒部从打开位置移动到关闭位置时，分度棘爪使紧固件前进并使其与进给棘爪工作啮合。