| 1. | In the conventional view of structure formation , the cluster gas was heated purely by gravitational collapse
关于结构形成的传统观点认为：星系团气体纯粹是经由重力塌缩而加热。
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| 2. | All black holes are formed from the gravitational collapse of a star , usually having a great , massive , core
所有的黑洞都是因为恒星的引力坍缩而形成，这种恒星通常有一颗巨大而厚重的核心。
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| 3. | Cores , they argued , can be even smaller because turbulent motion within the molecular cloud can trigger gravitational collapse
他们推论认为分子云内的乱流可以引发重力坍塌，所以云核还可以更小一些。
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| 4. | Because of the great mass , the inner parts of jupiter undergo gravitational collapse , and the gravitational potential energy turns to thermal energy . as a result , jupiter radiates more energy than it receives from the sun
大质量木星的强大引力，令内部产生重力塌缩，不断将物质的引力位能转化为热能，结果，木星向外太空辐射的能量，比它从太阳得到的能量还要多。
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| 5. | A quantitative analysis of this idea led to the prediction that a star remaining about three times the mass of the sun at the end of its evolution ( usually as a neutron star ) , will almost inevitably shrink to the critical size needed to undergo a gravitational collapse
该想法的定量分析导致预言一颗恒星在终止它演化时候保持大约三倍太阳的质量(通常看做一颗中子星) ,将会几乎不可避免收缩到临界体积必须遭受引力坍塌。
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| 6. | The decay of the external scalar - field of a black hole is studied in the third chapter , i . e . , the physical mechanism of the decay of neutral scalar - field in the gravitational collapse , and the physical mechanism of the decay of charged massive scalar - field in the gravitational collapse
第三章主要研究无质量标量场在黑洞外部的衰减，即无质量中性场在引力塌缩中随时间衰减的物理机制和无质量荷电标量场衰减的物理机制。
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| 7. | General relativity ( as well as most other metric theories of gravity ) not only says that black holes can exist , but in fact predicts that they will be formed in nature whenever a sufficient amount of mass gets packed in a given region of space , through a process called gravitational collapse
广义相对论（以及很多其它的米制引力理论）不只是说黑洞可以存在，而是事实上预言了它们将会自然形成只要在给出的空间区域质量聚集到足够大，虽然过程称做引力坍塌。
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