1、The principle of the phase meter and it's block dia - gram are presented.
論述了相位計的工作原理，給出了系統(tǒng)框圖。

2、Turn on the phase meter and touch each plug of the socket;
打開相位計，并碰觸插座的每個插孔；

3、In this article the design and the realization of virtual phase meter based on.
介紹了基于時間法的虛擬相位差計的設(shè)計與實現(xiàn)。

phase meter翻譯