Then, we analyse in detail the mass-accretion histories and structural properties of dark haloes in high-resolution N-body simulations.
本文利用高分辨率的N体数值模拟仔细分析了暗晕的质量吸积历史和内部结构演化历史。
"The only remaining doubt," he said, "is whether massive stars of much higher mass, say 50 or 100 [solar masses], will form by the same accretion process."
唯一剩下的疑问是“，他说，”更大的星体，如50 - 100个太阳大小，是否也通过同样的积累方式形成的。
For decades, astronomers have been confident that relatively low-mass stars such as our sun form by the gradual accretion, or buildup, of mass from a disk of gas and dust.
几十年来，天文学家已经确信质量相对较小的星体，如我们的太阳，是逐渐积累或建立自碟状气体或尘埃而形成的。
Most black hole mass seems to come from direct consumption (called accretion) of gas, indicating that a black hole needs a surrounding galaxy to grow.
大多数黑洞聚集物看起来是直接从气体(叫做冲击层)的消耗中间来的，这表明一个黑洞的成长需要周围有一个星系。
For a stationary, adiabatic flow the specific energy E, specific angular momentum L and mass accretion rate M are constant in space.
对于静态、绝热吸积流，比能量E、比角动量L和质量吸积率M都是空间的常量。
As the accretion disk feeds more mass into itself, the embryo star contracts, growing ever denser and more massive.
随著吸积盘获得越来越多的物质，胚胎恒星就不断收缩，密度和质量都变得越来越大。
Through almost 30 years observation and study, astronomers come to a relatively clear agreement that low mass stars form by collapse, accretion and outflow.
近30多年的观测研究使得天文学家对小质量恒星的形成有了相对明确的认识：小质量恒星通过坍缩、吸积和外向流的路标而形成。
Because of the connection between outflow and accretion seen in low-mass stars, surveys of molecular outflows in high-mass YSOs can shed light on this debate.
因为在低质量恒星形成中外流与吸积相联系，在大质量恒星形成区搜寻分子外流将有助于解决这种争论。
Hence, for the most part, observations of accretion disks and orbital motions merely indicate that there is a compact object of a certain mass, and says very little about the nature of that object.
因此大体上，增大圆盘片和轨道运动的观察只指示有某个质量紧凑的物体，而且有关那个物体的性质说得非常少。
Therefore, it is an absolutely necessary key to understand the process of mass accretion for interpretation of the particular high-energy radiation from these systems.
所以了解吸积过程是解释这些天体独特的高能辐射特性的一把必不可少的钥匙。
Volume change of mass, accretion state and haemorrhagia amount during the operation were analyzed.
观察动脉灌注化疗栓塞前后肿块的大小变化、术中肿块粘连状况及出血量的多少。
Volume change of mass, accretion state and haemorrhagia amount during the operation were analyzed.
观察动脉灌注化疗栓塞前后肿块的大小变化、术中肿块粘连状况及出血量的多少。
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