qan的精选

＂qian＂是汉语普通话中的一个基本音节＂qan＂则是一个不符合普通话声母和韵母拼合规律的不正确音节。在普通话声韵拼合规律中，舌面前音声母＂j、q、x＂是不能直接与＂开口呼＂及＂合口呼＂韵母拼合的，需要在声母和韵母之间加上介音：＂i＂或者＂v（u...

质保等级，即qualityassurancecategory。&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp&nbsp质保1级，要求厂家质保...

QAN:QualityActionNotice质量行为的通知QAN:QualificationAccreditationNumber资格认可号QAN:QualityAssuranceNetwork质量保证网络...