The pyrolysis liquid obtained are fractionated to get light fractions, used as gasoline and diesel fuel and heavy fractions, used as filling oil for rubber processing.

研究表明，所得到的热解液体中，轻中馏分可作为汽、柴油馏分，重馏分可作为橡胶加工中的填充油；

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The influence of processing oil, antioxidant, curing system, processing aids and coupling agent on the rolling resistance of rubber compound is also briefly described.

简要论述了操作油、防老化体系、硫化体系、操作助剂和偶联剂等的选择对胶料滚动阻力的影响。

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The purchases included the Canada-based R Wales group of companies, which makes specialist rubber and wear resistant linings for the mining, minerals processing and oil sands industries.

BBC: Weir Group in ?55m spending spree