envelopvt.包封;遮盖;包围
envelop ratio包络度
envelop model包络线模型
envelop anchor封锚
enveloping box包围盒
envelop method“包络法”
enveloping cell外(胚)层细胞, 围被细胞(昆虫)
enveloping ring包络环
Envelopment box包围盒
envelopin solid包络体
enveloping worm包络蜗杆