每小时由一个数字打印机记录一次输出信号。
Output signals are recorded by a digital printer every hour .
每小时由一个数字打印机记录一次输出信号。
Output signals are recorded by a digital printer every hour.
用两个分辨率为10毫微秒的时间间隔测定器测量时间差，并用数字打印机来记录测量结果。
The time-interval measurements are made with two high-resolution (10 nsec) digital time-interval counters along with a digital printer to record the data.
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