前言 飞机外部的清洗有两个目的:一是保持机体外形美观;二是去除机体表面的盐类,防止腐蚀。由于这是一项需要频繁进行的作业,因此渴望运用有效的方法提高效率。目前,世界上绝大多数的国家还都是由人工清洗飞机的。 Foreword External cleaning of the aircraft has two purposes: First, maintain the appearance of the body handsome; second is to remove the body surface salts to prevent corrosion. As this is a job that requires frequent work, it is eager to use effective methods to improve efficiency. At present, most of the countries in the world also clean their aircraft by hand.