Degreasing pits, filled with solvent for cleaning the engine parts, dotted the factory floor;workers used squirt cans of solvent to clean their hands and clothes.

• 厂房地板上散布的除污槽里，装满了各种用来清洁引擎零件的溶剂，工人则用喷筒喷洒去渍剂来清除手上和衣物上的油污。