The criterion for gravitational contraction set by Equations 3.4 is signficantly weaker for more massive clouds.

由(3.4)式建立的引力收缩判据,对质量较大的云是很牵强的.

辞典例句

It is believed that the young stars have formed from this cold matter through gravitational contraction.

人们相信,新恒星是由这些冷物质通过引力坍缩形成的.

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