elevator pawl casing

例句：

1. 1. The elevator was damaged during the recentearthquake.
   电梯在最近的地震中受损。
2. 2. Theelevator operator had to repair the damaged parts.
   电梯操作员不得不修理损坏的部分。
3. 3. Theelevator was out of order, so wehad to use the stairs instead.
   电梯出故障了，所以我们不得不使用楼梯。