主要由戊烷和己烷组成的一种挥发性石油馏分。
A volatile fraction of petroleum consisting chiefly of pentanes and hexanes.
EMMED 32是一种经精选馏分的产品，具有 高闪火点与低挥发性。
EMMED 32 is a careful selection of distillation range during periling to give a low volatility and high flash point.
根据铝翅片冲压加工工艺的技术特点，选用加氢精制窄馏分轻质油为基础油，添加特制的脂肪酸酯为油性剂以及自制的润湿剂和复合防锈剂等添加剂调合成HC - L 200挥发性冲压油。
A volatile pressing oil HC-L200 was formulated with hydrotreated narrow fraction light base oil, fatty acid ester lubricant and additives, such as homemade wetting agent and compounded antirust agent.
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