Read Edit View history 残余沾染 cányúzhānrǎn residual contamination Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 残余沾染/殘餘沾染 · cányúzhānrǎn · residual contamination 2026/03/04 残余沾染 / 殘餘沾染 cányúzhānrǎn residual contamination residual contamination 必须彻底清除实验室设备上的残余沾染。 created sense Mar 4, 2026, 02:25 AM