表虚
biǎo xū
- exterior deficiency
![表虚](../cache/1400898.jpg)
表虚[biǎo xū]
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玉屏风散善治表虚易感,是预防感冒(流感)的一个经典处方,玉屏风散增强免疫功能的作用屡有报道。
Literatures frequently reported that Yupingfeng San can enhance the immune function .
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电能表中性点虚接对电压互感器二次压降的影响分析
The Influences and Analyses about PT Secondary Voltage Drop Caused by Energy Meter 's Neutral Point Virtual Connection
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基于对称分量法,对电能表中性点虚接后的电压互感器二次压降进行了分析,得出了正确接线前后的计量误差变化量。
The on-site test results indicate that energy meter 's neutral point virtual connection has a great effect on PT secondary voltage drop .