On AT89S51 as the core, A44E hall sensors, and to realize the bicycle speed number, and velocity measurements can be bicycle speed with LCD real-time display.

以at89s51单片机为核心，A 44e霍尔传感器测转速数，实现对自行车速度的测量，并能将自行车的速度用LCD实时显示。

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The growing speed of a plant is influenced by a number of factors.

植物的生长速度受到了许多因素的影响。

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A recent study found that the number of Americans with high-speed Internet at home today actually fell during the last two years, and 15% of people now consider themselves to be "cord-cutters".

最近一项研究发现，过去两年中，装有家用高速网络的美国人数量实际上有所下降，有15%的人认为自己是“掐线者”。

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The large number of sails the Flying Cloud could carry increased the speed of the ship.

VOA: special.2009.12.23

We give you a very rich table of constants that's got all kinds of things from the mass of the electron to the speed of light, and all this stuff to the requisite number of significant figures. And, in addition, you are allowed to take in one sheet of paper, 8 1/2 x 11 one sheet 8 1/2 x 11, you can write anything you want on it.

我们会给你一个很详实的常量表,将会涉及很多方面，从元素的电子,到光速，这些内容到有效数字的定量,还有，你们可以带来一张纸，纸的规格是，可以写任何你们想写的东西。

麻省理工公开课 - 固态化学导论课程节选

But he says speed is not necessarily the number-one priority.

VOA: standard.2010.05.10

However, that distance depends largely on factors such as vehicle speed, number of passengers, ambient temperature and use of accessories like heating and air conditioning.

FORBES: Living With A Chevrolet Volt

Mining involves solving a hard mathematical problem and miners typically use large numbers of computers to speed up the number-crunching involved.

BBC: Bitcoin miners generating high energy bills

Mining involves solving a hard mathematical problem and miners typically use large numbers of computers to speed up the number crunching involved.

BBC: Bitcoin miners hit back at cyber-thieves