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1.前言润滑剂是具有能够在机械可动部分表面形成保护膜,防止各种零件表面直接摩擦,从而减少摩擦损失的物质统称。
1. Introduction Lubricants are those that have the ability to form a protective film on the surface of mechanically movable parts to prevent direct friction on the surfaces of various parts and thus reduce frictional losses.