释义 |
- 1
They provide friction, so the vehicle can grip the road, but some of the power supplied to the tyres is lost as heat. 汽车的抓地力正是因为轮胎的摩擦力提供的。但供给轮胎的能量一部分要消耗在生成的热量。 - 2
"It describes the power needed to propel a bike against our everyday foes: gravity, weight, friction, wind resistance," he writes. “它描述了推动自行车克服日常阻力——如引力、重量、摩擦力以及风阻——所需要的能量,”他这样写到。 - 3
The viscosity of the liquid medium reflects the ease of mobility, high viscosity, friction will increase, reducing output power, a waste of energy and have a high temperature. 液体的粘度反映了介质流动的难易程度,粘度过高会增加内摩擦阻力,降低输出功率,浪费能量,并产生过高的系统温度。
|