题目内容

叶片式马达能紧密的贴合在定子内表面是因为离心力

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But in some cases, flights can’t take off on time due to various reasons.

幻灯片打印时,只能每页打印一张幻灯片。

Li Ming is asking the way to the Central Park.

按轴线形状的不同,轴可分为曲轴、直轴、空心轴 。()

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