近年来,国外在清洗运输工具、容器、机车车辆零部件、生产车间地板和墙壁方面,广泛利用直径2—6毫米的喷嘴喷射高压水,水压为40～100公斤/厘米~2。因为水压相当于一般清洗装置的5～20倍,能将固着在表面上的污物冲洗掉。一般清洗用冷水,个别情况(如清 In recent years, foreign countries have extensively used jet nozzles with diameters of 2-6 mm to jet high-pressure water at a pressure of 40 to 100 kg / cm 2 in cleaning transportation tools, containers, spare parts for rolling stock, floors and walls of production plants. Because the water pressure equivalent to 5 to 20 times the average cleaning device, can be fixed on the surface of the dirt washed away. General cleaning with cold water, individual cases (such as clear