The tail has a double-arm co-axial gravity tensioning device, which can adjust the tail roller synchronously.
尾部采用齿轮条重力张紧装置； 同步调节尾部滚筒行程。
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。
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