precisely counted
精确地计算
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Then, the interrupt of the single chip timer had been used to time precisely, and the Hall pulse number had been counted in unit time.
采用霍尔传感器采集液压泵旋转产生的脉冲，结合单片机定时器的中断来精确计时，并对单位时间内的霍尔脉冲数进行统计。
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