您要查找的是不是：
- This paper introduces variable frequency adjustable speed system for external rotol synchronous motor with permanent field magnets fitted to a dacron filament high-speed spinning machine friction roll. 本文介绍用于涤纶长丝高速纺丝机摩擦辊外转子永磁式同步电动机的变频调速系统。
- The angle of the feed into the friction rolls affects fiber alignment. 纤维喂入时与磨擦辊的夹角对纤维在纱体中的排列有一定的影响。
- Chock the barrel up or else it will roll over. 用楔子塞住圆桶,不然它会滚过去。
- The slow steady roll of the ship made him sick. 轮船不停地缓慢摇晃使他感到不适。
- The desk calculator use a roll of paper. 这台台式计算机使用卷纸。
- She is crazy about rock and roll. 她喜欢摇滚乐。
- Friction causes a rolling ball to stop finally. 摩擦力使滚动的球最终停了下来。
- I'm going to a rock and roll concert tonight. 我今晚正要去参加摇滚音乐会。
- 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。
- If the table top isn't level, things will roll off. 如果桌面不平，东西就会滚下来。
- The boy turned up missing at roll call. 小男孩在点名时不见了。
- The jokes made everybody roll about. 那些笑话逗得人人捧腹大笑。
- The teacher calls the roll every evening. 老师每晚都要点名。
- He cut off a metre of cloth from the roll. 他从那卷布上剪下一米。
- 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。
- Let's roll back the carpets and have a dance. 咱们把地毯卷起来跳舞吧。
- Can you have this roll of film develop and printed? 请你给这卷胶卷冲印一下可以吗？
- We can be struck off the roll for that. 我们会为此而被开除的。
- Let's wait till the clouds roll by. 我们应该等待时机。
