The paper introduces the application of hydraulic cyclones in tailing filling,grading,and prethickening.
介绍了水力旋流器在尾矿充填、
、
浓缩工艺中的生产应用。
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It was not until the 1950s, though, after bacteria were found to be responsible for the phenomenon, that the process was commercialised to recover leftover material in tailings, the liquid and solid waste from mining operations.
但直到 20 世纪 50 年代, 人们才发现这种现象是由细菌造成的,这一工艺才被商业化, 用于回收
中的剩余物质,即采
作业产生的液体和固体废物。
Cepheid variables are reasonably easy to recognize because they are among the brightest variable stars, and they have a characteristic light curve, showing fairly rapid increases in brightness followed by a slower tailing off.
造父变星相当容易识别, 因为它们是亮度最高的变星之一,并且具有典型的光变曲线,显示
亮度相当迅速的增加, 随后是较为缓慢的减弱过程。