number of braking pairs

例句：

1. 1.The number of braking pairs is crucial for safe driving.
   制动对数对于安全驾驶至关重要。
2. 2.The car had a high number of braking pairs, which made it easy to stop.
   这辆车的制动对数很高，这使得刹车变得容易。
3. 3. The engineers were tasked with improving the number of braking pairs on the new model.
   工程师们被指派改进新款模型上的制动对数。