英语词汇“periodic variation”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	periodic variation
释义	periodic variation短语¹⁴⁴⁹⁷²⁺² 基本例句周期性变化 So, instead of having the periodic/span> variation of water, or the periodic variation of air density here we're talking about an electric field. 不像水或者空气密度的,周期变化，我们这里,讨论的是电场。163
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