A speedometer reading for the momentary rate of travel.
行驶时时速计上的读数。
The speedometer shows a reading of 10 miles per hour.
这时测速仪上显示出来的读数是每小时10英里。
You Can define the excessive speed of a motor-car in terms of a pointer reading on a speedometer. But Can you define excessive noise in the same way?
你可以根据一个速度表上指针的读数来定义一辆机动车的超速，但是你可以用这种方法来定义噪音超标吗？
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