envelope 英 [ˈenvələʊp]
美 [ˈenvəloʊp]
复数形式：envelopes
envelope 词典解释
名词信封，封皮；壳层，外壳；包裹物；[生物学]膜，包袋
envelope 词典例句
名词
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Mother addressed the envelope.
母亲在信封上写姓名地址。
envelope 网络解释
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包膜
...后发现该病毒也可存在于其他疾病,故称为EB病毒(Epsteinbarr virus,EBV),EB病毒属疱疹病毒科,又称人疱疹病毒4型(HHV-4),为双链DNA病毒,完整的病毒颗粒由类核(nucleoid),膜壳(capsid),壳微粒(capsomere),包膜(envelope)所组成,类核含有病毒DNA;...
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外壳
...汉他病毒属RNA型病毒,病毒呈圆形或卵圆形(如图一),直径约80-115(95)nm,核外被含有脂质之外壳(envelope)所包围,外壳表面有突起,病毒在细胞质内增殖时可产生大量之特殊包涵体....
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abbr. env; 发现被膜抗原
envelope 英英释义
noun
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any wrapper or covering
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a flat (usually rectangular) container for a letter, thin package, etc.
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the bag containing the gas in a balloon
Synonym: gasbag
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the maximum operating capability of a system (especially an aircraft)
e.g. test pilots try to push the envelope
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a natural covering (as by a fluid)
e.g. the spacecraft detected an envelope of gas around the comet
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a curve that is tangent to each of a family of curves
envelope [ˈenvələʊp]
高考
四级
六级
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英语释义
1
n. a flat (usually rectangular) container for a letter, thin package, etc.
2
n. any wrapper or covering
3
n. a curve that is tangent to each of a family of curves
4
n. a natural covering (as by a fluid)