a safety threshold of 50 mg of nitrates per litre每升含50毫克硝酸盐的安全下限Our water supply is becoming polluted with nitrates.我们的水源正受到硝酸盐的污染。Silver nitrate is a salt.硝酸银是一种盐类化合物。
英英词典释义
Noun
1. any compound containing the nitrate group (such as a salt or ester of nitric acid)
Verb
1. treat with nitric acid, so as to change an organic compound into a nitrate;