This document describes general equipment used in switching power supply testing and their characteristics.
此文件描述一般开关电源供应器的测试仪器及其特性。
The characteristics of testing methods of measuring the large aspheric optical profile and their characteristics are summarized.
总结了常用大型非球面光学元件轮廓检测方法及其特点。
The characteristics of testing methods of measuring the large aspheric optical profile and their characteristics are summarized.
总结了常用大型非球面光学元件轮廓检测方法及其特点。
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