often meet this situation
经常遇到这种情况
以上为机器翻译结果，长、整句建议使用 人工翻译 。
During the teaching, the writers found that applying this method to analyze the circuit problem often meet with three kinds of situation mentioned in this article.
笔者在教学过程中发现，应用此种方法分析电路问题时，常会遇到本文所述的三种情况。
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