In the field of electronic technology, the frequency is basic parameter, frequency of Detection and many of the measurement of electrical parameters have a very close relationship.
在电子技术领域内，频率是一个最基本的参数，频率的检测与许多电气参数的测量都有着十分密切的关系。
In the fourth part, the researches of preparation technology are proceeded, including fabricating ball lenses using sagging method, polishing of ball lenses and basic performance measurement.
第四部分对球透镜的制备工艺进行研究，包括槽沉法制备球透镜、球透镜的抛光和基本性能测试。
Objective to provide measurement methods and basic data for computer technology to be used for the manufacture of root processus of complete denture.
目的为计算机技术应用于全口义齿磨光面根突的制作提供测量方法和基础数据。
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