It is essential to mark common difference measurement in a machine drawing.
尺寸公差标注是绘制机械图的一项重要内容。
The precision and affecting factors of phase difference measurement are analyzed.
分析了检测精度和影响精度的因素。
This thesis makes a study of high accuracy time interval and frequency difference measurement techniques.
本文对高精度时间差、频率差测量技术进行了研究。
The pilar difference measurement and instrument comparison is basic to the quality and usage of the recorded geomagnetic data.
墩差测量和仪器比测是地磁观测中最基本的工作，直接影响到观测资料的质量和使用价值。
The emphasis of the research of the method of time difference measurement is how to suppress noise and interference effectively.
有效地抑制噪声和干扰是研究各种时差测量方法的重点。
The satellite-to-satellite range and time difference measurement were necessary to distributed spacecraft and formation flying systems.
编队飞行卫星间的距离和时间差测量是实现分布式航天器完成特定任务的重要基础。
This method was changed from measuring the dimension difference to the time difference measurement by using an optical system and circuitry.
这种方法利用一光学系统和电路，把线值差转换为时间差来测量。
The principles of common time interval and frequency difference measurement techniques are introduced, and performance of these techniques is analyzed.
对常用的时间差、频率差测量方法的原理进行了介绍，并对各种测量方法的性能进行了分析。
The principles of common time interval and frequency difference measurement techniques are introduced, and performance of these techniques is analyzed.
对常用的时间差、频率差测量方法的原理进行了介绍，并对各种测量方法的性能进行了分析。
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