Water clock: or clepsydra, Ancient device for measuring time by the gradual flow of water.
水钟，亦称漏壶，利用水的流动计时的古代时钟。
This method of measuring time through clepsydra was still not accurate.
这种漏壶计时的准确性仍然比较差。
Both the hardware and software of the laser target measuring time system are introduced.
介绍了大面积激光靶计时系统的硬件和软件两个部分。
Both the hardware and software of the laser target measuring time system are introduced.
介绍了大面积激光靶计时系统的硬件和软件两个部分。
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