unpolluted production清洁生产
unpolluted product清洁生产
unpolluted experiments实验绿色化
unpolluted food绿色食品
unpolluted road净道
unpolluted deoxidation无污染脱氧
unpolluted water没有污染的水
unpolluted area一路清新
unpolluted deoxidation process using无污染脱氧
ADJ(形容词) Something that is unpolluted is free from pollution. 未被污染的