The common gas-solid separations and transportation equipment, as well as the structural features and parameters selection of the cyclone-proliferation separator were summarized.

介绍了气相法白炭黑输送过程的特点，常见的气固分离方法及分离设备的选择，扩散式旋风分离器的结构特点、参数选取等。

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Those elements that exist in vast numbers of copies in some species may not be the result of gradual accumulation, but of a sudden burst of proliferation that, for some reason, was permitted by natural selection years ago.

ECONOMIST: Truly selfish genes