The affection of the driving ratio and position-changing coefficient on the side contact macula of the gears was analysed and calculated.

本文分析计算了传动比和变位系数对齿轮副接触斑点的影响；

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To solve the problem of exaggerated angle pulse in the ratio driving and tracing measuring technique in testing in situ for large gears, the programmable dynamic frequency doubler has been developed.

为解决大齿轮在机测量过程中采用比例驱动跟踪测量技术时转角脉冲当量过大的问题，研究开发了可编程动态倍频器。

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Compared to the LCD using two glass substrates, our new device exhibits a comparable contrast ratio (514:1), driving voltage, and response time because of good LC alignment.

良好的液晶取向性能使新器件的对比度(514：1)、驱动电压和响应时间都能够与双玻璃基板LCD相比拟。

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The key factor in terms of better handling and acceleration, meaning more immediate pleasure in driving, is the power-to-weight ratio.

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