润滑油品常用技术术语中英文对照 Acid Number(AN) Milligrams of KOH required in tests to neutralize all the acidic constituents present in a l g sample of a petroleum product. Also formally called the Neutralization Number, this property is often used to indicate the extent of contamination or oxidation of used oils. 酸值(AN) 也称中和值，指中和 1克油品试样中所有酸性物质所需氢氧化钾的毫克数。该性能指标通常用于表小已用过的油被污染和被氧化的程度。 Additive Any material that is incorporated into a product at relatively low concentration to impart new properties or enhance existing properties. 添加剂 以相对较低的浓度加入某一产品中，从而赋予该产品某种新的性能，或者增强其现有性能的任何材料．均称为添加剂。 Aniline point the minimum temperature for complete miscibility of equal volumes of aniline and the sample under test．Products containing aromatics or naphthenes have lower aniline points than products containing paraffins. 苯胺点 指相同体积的苯胺与试样达到完全混溶所需的最低温度。含有芳烃和环烷烃的产品比含有石蜡的产品的苯胺点相对要低。 Antiwear(AW)Agent Additive that is active in preventing damage caused by occurrence of solid phase welding between sliding surfaces without local surface melting. 抗磨(AW)添加剂 相互滑动的表面因发生相互摩擦会造成损坏。抗磨添加剂就是能有效防止这类磨损，同时又不会令发生滑动的表面熔化的添加剂。 API Service Classification -A system of letter designations agreed On by API,SAE and ASTM to define broad classes of engine service. Also a system of service classifications for automotive gear lubricants． API适用级别分类 由API、SAE和 ASTM共同商定并使用的一套英文字母代号，用以确定发动机油的主要适用级别，以及汽车变速箱润滑油的适用级别。 Aromatic A hydrocarbon derived from，or characterized by the presence of the benzene ring。 芳烃 由苯环衍生出的、或因含有苯环而具有其特性的烃化物...
