在经历超新星后，假如剩下的残核小于三个太阳质量，爆炸的残余物质就将可能演变成旋转着的中子团。
Immediately after supernova, if the remnant core has a mass of less than three SUNS, one would expect a blob of degenerate neutron matter to be spinning in the explosion's wake.
反应烧结成本相对低一点，但制品中总有残余硅存在，使得制品的质量不高。
Cost of reaction sintering is relatively low, but there is always residual silicon in products, lowering the products quality.
纤维预制体的渗透性、孔穴或干斑的形成、残余应力的形成是影响成品质量的三个主要方面，本文对研究中存在的问题，进行了总结和评述。
This paper presents a summary on studies of factors which influence the quality of finished parts based on permeability of fibrous preform, voids or dry spots and residual stress.
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