envelopvt.包封;遮盖;包围
enveloping algebra封裹代数
envelop of spectrum谱包络
envelop of function功能范围
envelopment quantum包裹量
envelop manual feed[计] 手工送入信封
enveloping movement包围行动
envelop optimization包络优化
envelopment analysis包络分析
enveloping structure围护结构
envelop with plastic塑封