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.

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。

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In fact, this narrow definition of e? Commerce is only a fraction of the Alibaba Group strategy.

事实上，这一对于电子商务狭隘的定义仅仅是阿里巴巴集团战略的一部分。

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The performances of all the models deteriorate as the void fraction increases. The reason may be attributed to the geometrical differences between a circular tube and narrow rectangular channel.

随空泡份额的增大，各模型的计算性能均变差，可能是通道几何差异所致。

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