contaminant

n. 杂质；污染物质；沾染物contaminant Noun a substance that contaminates contaminant例句 用作名词(n.) The gas contains blow-by, sludge, acids, oil, and other contaminant.这些气体包括窜缸气体，沉积物，酸，机油和其它杂质的气体。 Product must be...