阴阳易，为一种病名。源头出自东汉张仲景《伤寒论》，书中曰：伤寒，阴阳易之为病，用烧裈散主之。
电流密度低，沉积速度慢，容易出现阴阳面，光泽欠佳；电流密度过高，凸部易烧焦。
Current density low, sedimentary speed is slow, prone to Yin and Yang, the luster of the poor, face Current density too high, convex department easily burnt.
点穴擒拿的练习者，不可不熟知经络穴位，明晓易理阴阳之变化。
The practitioners of acupoint pointing and releasing have to be familiar with the Jingluo and acupoints. They should understand the changes of Yin and Yang.
“易通则变，变则通，通则久”。 简易，指《周易》的阴阳之理在人类社会、大自然之间处处可见，无所隐奥，毫不繁杂；
Easiness means the Yin and Ying rules of "Zhou Yi" are seen everywhere in human society and the nature, without any secrets and miscellaneous features;
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