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5.1 前言 本章叙述金、银、铅之类的软金属固体润滑剂,以及不属于本刊前几期介绍过的任何一类的其他固体润滑剂。
5.1 Preface This chapter describes soft metal solid lubricants such as gold, silver and lead, as well as any other solid lubricants that do not belong to any of the previous editions of this publication.