Yellow phosphorous tail gas contains large Numbers of co and some of deleterious impurities,. Co is the basic material of one carbon chemistry engineering.
黄磷尾气中含有大量的CO及一些有害杂质，其中CO是碳一化工的基本原料。
Impurities from phosphogypsum had deleterious effect on the property of cement when used as cement retarder, which caused limited application.
磷石膏用作水泥缓凝剂时，其中含有的杂质对水泥的性能产生不利影响，因此使其应用受到限制。
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