The utility model can realize the stepless speed change and has reliable positioning and easy speed change operation and is an ideal speed changing device for the line driving bicycles.

本实用新型可实现无级变速，定位可靠，变速操作方便，是线传动自行车的一种理想变速装置。

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To realize the auto-leveling control of draw frame during its start and stop process, a premise to solve this problem is to keep a steady speed change during the accelerating and decelerating process.

为解决并条机启、停过程的自调匀整控制，关键要实现启停机加减速过程的平稳变速。

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Auto setting of open height and speed change point for each bend.

上刀模开距及慢速点距离均由电脑自动设定。

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Gallium arsenide switches ten times faster than silicon All of a sudden,I've got a clock speed ten times faster with no change in design.

砷化镓启动的速度是硅的10倍,突然，我得到了10倍快的时钟速度,但是设计没有发生任何改变。

麻省理工公开课 - 固态化学导论课程节选

And, you know acceleration means either change of speed or change of direction.

你知道加速度意味着,不是改变速度就是改变方向。

麻省理工公开课 - 固态化学导论课程节选

So what will speed change?

WSJ: In Bangladesh, the Slow, Tragic March to a Better Life

Needed are not only willingness to innovate and change, but speed of change, and focus on market opportunities.

FORBES: Connect

With the speed of change today, this concept remains relevant but has already become stale.

FORBES: It's the End of an Era - Enter the Knowledgeable Networker