Its work principle and character are introduced.
介绍了变频器的工作原理及特点。
Introduces the structure of this new type equipment and its work principle.
介绍了这种新型调车机的结构及工作原理。
This paper introduces a method of designing low power SSB transceiver as well as its work principle.
本文介绍了一种低功率SSB收发信机的设计方法及其工作原理。
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