英语词汇mechanical wave简单造句、意思、用法及例句-英语例句辞典

单词	mechanical wave
例句	原声例句可汗学院Khan Academy Middle school physics - NGSS初中物理 Now, mechanical waves need a medium to travel through. 现在，机械波需要介质才能传播。可汗学院Khan Academy Middle school physics - NGSS初中物理 Now, everything that we have just talked about, these are called mechanical waves. 现在，我们刚才谈到的一切都被称为机械波。
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