人研究小組人研討小組focus-grouresearch: 焦點(diǎn)訪談座談會grouretardation: 群時延; 群延遲grourepresentative: 團(tuán)體險代理人grouretarder: 線束減速器grourepetition interval: 群重復(fù)周期組重復(fù)周期; 組重復(fù)間隔; 組重復(fù)周期下載手機(jī)詞典可隨時隨地查詞查翻譯