复合矿物填充剂
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compound mineral filler
复合矿物填料
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The reinforcing effect of mineral filler was lower than that of CB, but the compound processing property was improved and the cost was reduced.
矿质填料的补强效果低于炭黑，但能改善硫化胶料的加工性能，降低成本。
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