electric second meter

• 1. 电秒表: electrical stop watch | electrical secondmeter | electric second meter
• 2. 电子秒表: Cronometro | Electronic Stopwatch
• 3. 电气秒表: electric stopwatch

更多释义

• 1.分析了电子计数器时间间隔法测定电秒表的原理、误差及不稳定性，并且介绍了一种简便的门控法。
  This paper analyses principle, error, and unstable state of determining the electric stop watch by means of time-interval method of electric counter. A simple gate-control method is presented at last.
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