free from contamination的意思|示意

美 / fri: frɔm kənˌtæməˈneɪʃən / 英 / fri frʌm kənˌtæməˈneʃən /

无污染

Free from contamination, safe, high grade, nutrition kind food gets the favour of people.

无污染、安全、优质、营养类食品受到人们的青睐.

互联网

The wire must be free from contamination, rust and mechanical damage.

钢丝表面无污染, 锈蚀和机械损伤.

互联网

Then, most important of all, the water must be made free from contamination from sewage.

而最重要的是必须使水免于污水的污染.

互联网