uncontaminated
adj. 未污染的；无杂质的；洁净的
近义词：unpolluted，pure，clean，unadulterated，antiseptic，sterilized，germ-free，untainted，uncorrupted，undamaged，contaminated，
英英释义
Adjective
- not corrupted by contact or association;
"there is no culture uncontaminated by contact with the outside world"
- free from admixture with noxious elements; clean;
"unpolluted streams" "a contaminated lake"
例句
用作形容词(adj.)
- Uncontaminated water is normally used as seal water for vacuum pumps and for compressor cooling as well as for sanitary use.未污染的水通常用作真空泵的密封水和压缩机的冷却水以及供保健用。