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- positive friction role 积极摩擦作用
- There is positive proof that he did it. 有确切的证据证明他做了此事。
- New Knowledge on the Friction Role of Rackets to Ball in Table Tennis 对乒乓球运动中球拍与球摩擦作用的新认识
- 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。
- Her behaviour was a positive outrage. 她的行为残暴到了极点。
- I'm positive she told us to meet at noon. 我肯定她是告诉我们在中午见面。
- Eastern culture can play a positive role in this. 东方文化则在这方面会起积极作用。
- 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。
- This charge is a positive charge. 这个电荷是正电荷。
- She shows a very positive attitude to her work. 她工作态度非常积极。
- Can you be positive about what you hear? 你对听到的话有把握吗？
- China has played a positive role. 中国在这中间起了积极的作用。
- He has a positive attitude towards life. 他对生活持有积极的态度。
- Matches are lighted by friction. 火柴由摩擦而生火。
- The number of positive numbers is infinite. 正数的数目是无穷的。
- 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。
- Are you positive that you saw him? 你肯定你看到他吗?
- 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
