Turn on the phase meter and touch each plug of the socket;
打开相位计，并碰触插座的每个插孔；
And introduce a key design of high precision and width frequency area of phase meter.
并介绍一种高精度、宽频率范围的相位表的关键设计。
In the electronic instrumentation aspect, the phase-locked loop in instruments and so on in frequency synthesizer and phase meter played the vital role.
在电子仪器方面，锁相环在频率合成器和相位计等仪器中起了重要作用。
After function test and practical operation, it is confirmed that the YPH phase meter is highly reliable, stable in performance, easy in use, and low in power dissipation.
经性能测试和实际使用，证实了苏大yph具有工作可靠，性能稳定，操作简便，整机功耗低等优点。
After function test and practical operation, it is confirmed that the YPH phase meter is highly reliable, stable in performance, easy in use, and low in power dissipation.
经性能测试和实际使用，证实了苏大yph具有工作可靠，性能稳定，操作简便，整机功耗低等优点。
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