In this system, the variable frequency motor is applied to meet the requirement of low speed to check the compositive error and high speed to measure the vibration.

针对检测综合误差和振动时对主轴转速的要求，采用变频电机来控制主轴转速，以满足系统对转速的要求。

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Earlier this month, the office asked for the public's help to measure their speed results, saying consumers deserved to get the speeds they were promised.

本月早些时候，该办公室请求公众帮助测量网速，称消费者应享有服务商承诺的网速。

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Inside the tornado probe, there are sensors to measure wind speed, temperature, pressure, and direction.

龙卷风探测仪的内部安装有传感器以测量风速、温度、压力和风向。

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Scientists use the Saffir-Simpson Hurricane Scale to measure the intensity of storms based on wind speed.

VOA: special.2010.08.24

For those unfamiliar with the terminology, one gigahertz is equal to 1, 000 megahertz -- megahertz being the "clock speed" used to measure the basic performance of computer microprocessors.

CNN: Life at One Gigahertz

What fantastic claim be shown by doing an OPERA-like experiment to measure speed of light instead of neutrinos?

FORBES: New Evidence Casts Doubt On Faster-Than-Light Neutrinos

The mast was installed in April to measure wind speed, wave height and sea currents.

BBC: Offshore Sussex wind farm weather mast causes 999 calls