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- Before friction machine parts inspection, the friction coefficient whether the specimen design requirements, floating steel brush to remove rust, oil, paint cleanse. 配件前检查摩擦机，试件的摩擦系数是否达到设计要求，浮锈用钢丝刷除掉，油污、漆清除干净。
- The machine must break down at this busy hour. 正忙的时候，机器偏偏又坏了。
- The uses of this machine are manifold. 这台机器有多种用途。
- Friction lowers the efficiency of a machine. 摩擦减低机器的效率。
- In order to reduce friction, the moving parts of a machine are often oiled. 为了减少摩擦，机器的可动部件常常涂上润滑油。
- The new grinding machine passed all tests. 这台新磨床通过了所有的试验。
- 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。
- Oil feeds into the machine through this tubing. 油经过这个管子流入机器。
- Did you get a good trade-in on your sewing machine? 你以旧缝纫机折价换新合算吗？
- You may stop the machine by pushing this button. 按下这个按钮你就可以关掉这个机器。
- Just press the button and the machine will start. 只要一按电钮，机器就会开动。
- 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。
- The machine cast up a big heap of earth. 机器卷起了一大堆泥土。
- The machine feeds back everything you need to know. 这架机器可以把你所需要知道的全部材料再提供出来。
- The machine is used to rip up the documents. 这台机器使用来搅碎旧布并为织出新布提供纤维的。
- The machine stops and starts at a touch. 这机器一触即可停止或开动。
- Have oiled the machine, he begin to run it. 他把机器上了油之后便开始开动。
- Oil the moving parts of this machine regularly. 要定期给这部机器的运转部件上油。
