envelopedadj.被包围的动词envelop的过去式和过去分词形式.
envelopen.信封;壳层;封袋
envelope cut-off包迹截止波长
envelope cartridge信封纸
envelope materials囊体材料
envelope protection包线保护
envelope delay data包络线延迟数据
enveloped RNA virus有包膜RNA病毒
envelope distortion包络失真,群时延失真
envelope modulation包络调制
envelope extraction包络提取
envelope-layering包络分层