The word clock appeared first in English in the 9th century but at first it didn't mean a device for measuring time.
9世纪时英语中第一次出现了“clock”这个词，但最初这个词并不表示计时的器具。
In fact, ancient people celebrated the New Year even before they had exact ways of measuring time.
实际上，古人在还不会准确计时之前，就开始欢庆新年了。
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。
There are two forms in measuring time and both of them have credible base of cognition, and the integral concept of time must include both of them.
存在两种度量时间的形式，它们都有可靠的认识基础，完整的时间概念应包含这两个方面。
The key technology of measuring time-resolved spectrum is to design and make the special light beam modulator that is used to the time-resolved spectrum detecting.
瞬态时间分辨谱测量方法的关键技术：设计和研制了专用于时间分辨谱采集分析的光束调制器。
Because the automatic feedback and auxiliary heater techniques are used in this standard, the measuring time is greatly reduced, and a high calibration speed is gotten.
该标准采用了自动反馈和辅助加热器技术，大大缩短了测量时间，提高了校准速度。
A self - made instrument for measuring time is introduced. The method of measuring time in Milton oil experiment is improved and the result is compared with the method.
本文介绍了一种自制的时间测量仪，利用此仪器改进了密立根油滴实验的时间测量方法并对测量结果和方法进行了比较。
The paper adopts the method of measuring time based on microprocessor in place of that measuring bridge voltage; it improves the methane sensor's stability and precision very well.
此研究采用新方法将桥路电压的测量转化为基于微处理器的时间测量，极大地提高了瓦斯传感器的稳定性和精度。
Experiment result also proves that system can improve the measuring precision effectively and then get the more accurate cable force in the case of not increasing the measuring time.
试验结果表明系统在不增加测试时长情况下能有效提高斜拉索固有频率估计的精度，从而能得到精确索力值。
In the simulating environment, experimental research was done for measuring time-of-flight of the sound waves in the boiler which have major effect on the temperature-measurement precision.
在室温模拟环境下，对主要影响温度测量精度的炉内声波飞行时间的测量进行了实验研究。
The dynamic measurement is a non stationary random process varying with the measuring time. The dynamic measuring data have the characteristics of time variation, randomness, correlation and dynamic.
动态测量是随测量时间而变化的非平稳随机过程，动态测量数据具有时变性、随机性、相关性和动态性四个基本特性。
The local wavefront slope is extracted at real time with a real time image processor, thus the requirements for real time data storage can be reduced and a long lasting measuring time can be realized.
采用实时图象处理器，实时提取局部波前倾斜，从而减少实时数据存储的要求，实现长时间持续测量。
The local wavefront slope is extracted at real time with a real time image processor, thus the requirements for real time data storage can be reduced and a long lasting measuring time can be realized.
采用实时图象处理器，实时提取局部波前倾斜，从而减少实时数据存储的要求，实现长时间持续测量。
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