英语词汇“maintain proper air purity”的翻译、意思、用法、释义-英汉汉英双解词典

词汇	maintain proper air purity
释义	maintain proper air purity 保持适当的空气纯度
随便看	persistent data structure persistent deciduous teeth Persistent deciduous tooth persistent defect persistent delinquent persistent delusional disorder persistent delusional psychoses persistent delusional psychosis persistent demand persistent dense nephrogram persistent dependency behavior persistent desktop persistent development persistent deviance persistent diabatic heating persistent diplopia Persistent disease persistent disturbances persistent dnciduous teeth persistent drift persistent drought persistent ductus arteriosus persistent ductus venosus persistent dumping persistent ectopic pregnancy