您要查找的是不是：
- Friction causes a rolling ball to stop finally. 摩擦力使滚动的球最终停了下来。
- Constant friction wore out the heels of my shoes. 不断的摩擦磨损了我的鞋跟。
- Friction between two sticks can create a fire. 两个棍棒相互摩擦能起火。
- Surprise is an essential component of my plan. 我这项计划主要就是想使大家惊喜一下。
- In the absence of friction belted machinery would not be used. 没有摩擦力，皮带传动的机器就无法使用。
- Brimstone is a component part of explosive. 硫磺是炸药的一种组成成分。
- Matches are lighted by friction. 火柴由摩擦而生火。
- There is a great deal of friction between the management and the work force. 劳资双方之间存在大量矛盾。
- Air force is an important component of national defense. 空军是国防的重要组成部分。
- A friction match with a large head capable of burning in a wind. 耐风大头火柴一种能够在风中燃烧的通过磨擦点火的大头火柴
- Each component is carefully checked before assembly. 每个零件在装配前都经过仔细检查。
- Friction lowers the efficiency of a machine. 摩擦减低机器的效率。
- You could not walk if there were not some friction. 假若没有摩擦，你就不能行走。
- Adhesive friction, as of a wheel on a track or a tire on a road. 附着摩擦力粘附性摩擦，如车轮在轨道上或轮胎在路面上的
- The processing and assemble business is a component part of our foreign trade. 加工和装配贸易是我国对外贸易的一个组成部分。
- Friction gradually caused the sliding box to slow down and stop. 摩擦力使向下滑的箱子渐渐慢下来后停住。
- A pulse or circuit that initiates the action of another component. 触发器，触发电器引发其他部件运动的脉冲或电路
- There is some friction among the family members. 家庭成员间有些摩擦。
- friction component 摩擦组元
- Friction cannot be disposed of so easily. 摩擦是不能轻易消除的。
