In the course of Electrotechnics ,the Olm's Law in Its Plural Form is denoted in the form of the phasor ,so it is complicated to interpret it with the real-number solution of the differential equation but simple to do so with the complexification solution of the equation .The interpretation is of great significance to the applied teaching of the course of Mathematics .%在电工技术中，复数形式的欧姆定律是用相量形式表示出来，用微分方程的实数解的形式去诠释比较复杂，而用微分方程的复化解法去诠释是一种简单的方法。这种诠释对于数学应用教学有重要的意义。
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