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1.After 100,000 to one million years, depending on the original mass of the star, it ceases altogether, and the remnant star settles down as an extremely dense and hot white dwarf—a stellar ember crushed by gravity into a nearly crystalline orb about the size of Earth.
经过10~100万年（取决于恒星的原始质量），恒星风将骤然终止，而恒星的残留物会演变成极致密高热的白矮星：一种被重力挤压成地球般大小，近乎晶质球体的恒星遗骸。收藏指正
2.The Industrial test of stage grinding,gravity separation-high intensity magnetic separation and anionic reverse flotation technology in Co.1 Workshop of Qidashan Concentrator is described and its comparision with the original flowsheet and the analysis are made.The effort that should be made in the flowsheet transformation under the existing conditions is suggested.
介绍了齐大山选矿厂一选车间阶段磨矿、重选-强磁选-阴离子反浮选工艺工业试验情况，并与原流程进行了对比和分析，指出了在现有条件下进行流程改造应加强的工作。收藏指正
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