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英语
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the number of beats = the difference between the two frequencies 求翻译
人气:438 ℃ 时间:2020-01-29 11:51:34
解答
字面意思就是 打击的次数等于这两种频率的区别 不晓得你这个上下文是什么 所以没有办法解释中文能再解释一下吗?这是关于波的干涉这一块的,谢谢!
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