Seven years ago his father, Robert, produced a diamond in a high-pressure chamber of carbon gas and dropped it into an acid solution to clean it off.

七年前他的父亲罗伯特在一间高压碳气室中制造了一颗钻石，把它放入酸性溶液中清洗干净。

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The achievements of her research in acid dyes with high carbon alkyl group, reactive dyes, reactive disperse dyes and silk dyes were mainly reviewed.

在研究领域中着重介绍她在含长碳链烷基酸性染料、活性染料、活性分散染料及丝绸染料方面的成就。

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High reinforced white carbon black is prepared by using phosphate fertilizer's by-product fluosilicic acid as raw material and ammonia water as ammonia analytical agent.

利用磷肥副产氟硅酸为原料，采用氨水作为氨解剂制备高补强白炭黑。

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