frictional force

例句：

1. 1. The car's engine is designed to operate efficiently withminimal frictional force.
   汽车发动机设计得能以最小的摩擦力高效运行。
2. 2. Thefrictional force between the two surfaces iswhat causes wear and tear.
   两个表面之间的摩擦力是导致磨损的原因。
3. 3. The frictional force between the tires and the roadcan affect the car's acceleration.
   轮胎与路面之间的摩擦力会影响汽车的加速。