envelope查询结果如下：
详解 词库
双语句典
英文释义
韦氏词典
英文百科
wiki词典
英文句库
名词 变体/同根词
动词 变体/同根词
Alice looked at the envelope for a minute.
艾利斯看了一会儿信封。
属类：综合句库--
In this model, the resulting implosion and ensuing explosion would blow off the outer envelope of the star and leave behind the core as a neutron star
按此模型，引起的突然压缩和随后的爆发会把恒量的外部包层吹跑，留下的核成为一颗中子星。
属类：综合句库--
A strip of torn envelope peeped from under the dimpled pillow
凹陷的枕头底下露出一小截撕破了的信封。
属类：综合句库--
Fold the letter (in two)before putting it in the envelope .
把信(对)折起来再装入信封。
属类：综合句库--
Stick down the envelope
把信封贴牢。
属类：综合句库--
Stick the stamp on the envelope .
把邮票贴在信封上。
属类：综合句库--
Be sure to send a self-addressed and stamped envelope or you will get no answer
别忘了附寄上一个写有你自己地址和贴好邮票的信封，不然你就得不到回信了。
属类：综合句库--
envelope ,glass,open (and glass parts thereof),without fittings,for electric lamps and electronic valves and tubes(excl. tubes merely cut to length)
敞口玻璃管(及其玻璃零件),不带配件,用于电灯电子管(不包括仅按长度切割的管)
属类：物品名称-一般商品-玻璃制品
envelope ,glass,open (and glass parts thereof),without fittings,for cathode-ray tubes
敞口玻璃壳(及其玻璃零件)不带配件,用于阴级射线管
属类：物品名称-一般商品-玻璃制品
Envelope isolated from illuminated chloroplasts had much more orange zeaxanthin
从照光的叶绿体分离出来的套膜有很多橙色的玉米质。
属类：综合句库--
The envelope is derived in most cases from the cytoplasmic membrane
大多数病毒的囊膜取自宿主细胞膜。
属类：综合句库--
But even as she presses the envelope of what is acceptable, Rania also criticizes Western stereotypes
当然，拉妮雅一方面努力使其斗争让人能够接受，另一方面也批评西方的成见。
属类：综合句库--
As the young woman reached into a large brown envelope to retrieve the documents, a piece of paper fell out
当这位年轻女子从棕色的大文件袋中取出有关文件时，一张纸条掉了出来。
属类：综合句库--
The earth’s atmosphere is an invisible gaseous envelope
地球的大气是一个看不见的气体包围圈。
属类：综合句库--
The spiky handwriting on the airmail envelope from London was obviously hers
发自伦敦的航空信封上的尖长字迹分明是她的。
属类：综合句库--
the return voyage;a return envelope .
返航;回信用的信封
属类：综合句库--
flight management, guidance and envelope computer
飞行管理、制导及状态防护计算器
属类：行业术语-交通-香港交通
An envelope or wrapper for mail.
封套，信封为邮寄而制的信封或封套
属类：综合句库--
Now, take a blotter from over there and blot each envelope after I’m through writing it, she instructed me
好，把那边的吸墨纸拿一张过来，这信封我写完一个你就吸一个，她这样吩咐我。
属类：综合句库--
In-core temperature or primary envelope temperature measurements in nuclear power reactor-Characteristics and test methods
核动力堆堆芯或堆主包壳内温度测量特性和测试方法
属类：行业标准名称-国家标准名-GB/T7166-1987
The nucleoplasm is surrounded by the nuclear envelope
核质被核膜包裹。
属类：综合句库--
crystal mount ; transparent envelope
护邮套; 护邮袋
属类：科技术语--
The reproductive structure of some seed-bearing plants,characteristically having either specialized male or female organs or both male and female organs,such as stamens and a pistil,enclosed in an outer envelope of petals and sepals.
花具有专门用途的雄性或雌性生殖器官之一或两者兼具的某种结籽植物的再生产结构，例如雄蕊和雌蕊，被包裹在外面的花瓣和萼片之中
属类：综合句库--
A commemorative design stamped on an envelope to mark a postal or philatelic event.
纪念邮戳，首日封一信封上贴上一种有纪念意义的图案，以纪念集邮或邮政上的一个事件
属类：综合句库--
You must put a stamp on the envelope before you post it.
寄信以前，你必须在信封上贴上邮票。
属类：综合句库--
If you want a letter sent along with a package, attach the stamped letter to the outside of the package, and write clearly on the package “letter inside envelope ”
假如你要把信件同包裹一起寄，应把贴好邮票的信附在包裹外面，并在包裹上面清楚写明“内有信件”。
属类：综合句库--
Insert a letter into an envelope
将信塞入信封
属类：综合句库--
She tucked her letter into an envelope .
她把信摺好塞进信封。
属类：综合句库--
She opened the envelope , took out the letter, and unfolded it.
她拆开了信封，取出信，把它打开。
属类：综合句库--
She licked the envelope and sealed it.
她舔了一下信封便把它封住了。
属类：综合句库--
noun
1.A covering or containing structure or layer.
‘the external _envelope_ of the swimming pool’
‘Construction of the house commenced on-site on October 14 and the structural _envelope_ was erected in an incredible five days.’
2.A curve joining the successive peaks of a modulated wave.
‘Noise, when used with a vocal modulator, traces the _envelope_ of the vocal with wideband noise.’
3.A curve or surface tangent to each of a family of curves or surfaces.
‘Jacob Bernoulli also discovered a general method to determine evolutes of a curve as the _envelope_ of its circles of curvature.’
‘We looked at it, and it’s just a sine wave, an _envelope_ of minimum and maximum, with the width of the wave showing the time in boom vs. the time in recession.’
4.A flat paper container with a sealable flap, used to enclose a letter or document.
‘What made it worse was they had not paid enough postage for the weight of paper the _envelopes_ contained.’
‘The soldier would then enclose his ballot and the thrice-signed document in an _envelope_ .’
5.A membrane which forms the outer layer of certain viruses.
‘The cell _envelope_ of gram-positive bacteria consists of the cytoplasmic membrane and a cell wall.’
‘The departing viruses therefore have an _envelope_ that can fuse with the membranes of nearby cells, allowing the virus to enter.’
6.The outer metal or glass housing of a vacuum tube, electric light, etc.
‘the switch itself is a glass _envelope_ filled with rare gases and containing two contacts’
‘The presumption that the glass _envelopes_ of these bulbs function as cutoff filters to remove short wavelength radiation was unsubstantiated.’
7.The structure within a balloon or non-rigid airship containing the gas.
‘He led a team of 12 in Glastonbury, which designed and built the balloon _envelope_ and flight platform.’
‘At this time of day, the world is wonderfully peaceful - just the sound of distant burners pushing hot air into the _envelopes_ of nearby balloons and songbirds below.’
独上高台望四海 手揽云月傍天飞， 落叶重重已十月 归鸟凄凄啼心扉。
