secondary brake shoe

例句：

1. 1. The secondary brake shoe is a crucial component of the vehicle's braking system.
   次要刹车蹄片是车辆制动系统的关键部件。
2. 2. The engineer inspected the secondary brake shoe and found it to be in good condition.
   工程师检查了次要刹车蹄片，发现它状况良好。
3. 3.During heavy traffic, the secondary brake shoe wears out quickly, necessitating regular maintenance.
   在交通繁忙时，次要刹车蹄片磨损较快，需要定期维护。