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zheng xian jiao liu dian you xiao zhi de chu deng shu xue tui dao
Pages: 40-41
Year: Issue:  2
Journal: Journal of Puyang College of Education

Keyword:  有效值 初等数学 交流电;
Abstract: 正弦交流电的有效值通常是用高等数学推导的,本文则是用初等数学知识介绍了交流电有效值的推导方法。
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