以下为句子列表：
英文: Soot carbon is a filling agent for rubber that can improve its wear resistance. It is mainly produced by high temperature CRACKing that use coal tar as the feedstock.
中文: 炭黑是橡胶里的一种填充剂，可以增加橡胶的耐磨性等，它主要是以煤焦油为原料在高温下裂解而成的。
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英文: Wollastonite is also used as: protective slag in casting; sillicon-steel; electrode coating; lagging material; ceramic moulds and bonding agent for abrasives a filling agent in paper making, the trace mineral In the production of white cement and special
中文: 硅灰石还是模铸硅钢的保护渣，电焊条的涂料，陶瓷铸模，生产研磨材料和靡轮黏合剂，造纸的充填剂，生产白水泥，制造特殊电气陶瓷等不可多得的矿物原料。
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