英语词汇“under plain cover”的翻译、意思、用法、释义-英汉汉英双解词典-爱贷网

词汇	under plain cover
释义	under plain cover 没有注明寄发人姓名、地址及内容,用没有注明商号、装有何物的封袋邮寄
随便看	ratio rate ratio recorder ratio-recording ratio recording controller ratio-recording controller ratio recording electric-null system ratiorecording method ratio recording method ratio-recording method ratio-recording spectrophotometer ratio reflux ratio regulation ratio regulator ratio reinforcement ratio reinforcement schedule ratio relay Ratio Resident-area Index ratio resistor ratio restrained characteristic ratio restraint Ratio,Risk ratioRto ratios ratio sampling Ratios,Base