maximum allowable coefficient of friction

例句：

1. 1. The design of the new car has a maximum allowable coefficient of friction of 0.4.
   这款新车的设计最大允许摩擦系数为0.4。
2. 2. The surface of the tire is designed to have a maximum allowable coefficient of friction of 0.8.
   轮胎表面设计的最大允许摩擦系数为0.8。
3. 3. The brake pads are made with a material that has a maximum allowable coefficient of friction of 0.9.
   刹车垫是由一种最大允许摩擦系数为0.9的材料制成的。