vs.

    letter 对比 envelope
    分析 词典对比 组词对比
    (1).中国译典 letter envelope
    n.
    ①[C]字母;
    图典解说
    Written message that is inserted into an envelope and addressed to a recipient.
    扩展解释:【海运】
    信无线电报字母,文字
    n. 【化学】
    信,字母,文字,出租人;编字码,写上字,写印刷体
    n.
    [C]1. 信,函件,2. 字母;文字,3. (法律等的)字面意义[the S]4. 文字;学问[P]5. 证书,许可证[P1]vt.1. 在...上写字母;用字母写,vi.1. 写上字母
    【法律专业】
    出租人 ,书信,信函,许可证
    【电脑术语】 【术语缩写】
    字母,信
    【电脑术语】 【术语缩写】
    字母无线电报
    【海运】
    信无线电报字母,文字字,符号,书信,证书,许可证,
    n.
    信封
    扩展解释:【机械】
    包络线
    n.
    [C]1. 信封;封皮;封套,2. 外壳,壳层,3. (气艇,气球等的)气囊
    n. 【医学】 【医学】
    胞质鞘,被膜
    【机械模具】 【UG术语】
    包裹体
    【海运】
    包迹,包(络)线,封皮,包裹物信封外壳,机壳,管壳封套,
    (2).维基词典 letter envelope
    A symbol in an alphabet.
    A written or printed communication, generally longer and more formal than a note.
    The literal meaning of something, as distinguished from its intended and remoter meaning (often contrasted with the spirit).
    Literature.
    A division unit of a piece of law marked by a letter of the alphabet.
    A size of in × 11 in (215.9 mm × 279.4 mm, US paper sizes rounded to the nearest 5 mm).
    A size of paper, 215 mm × 280 mm.
    clipping of varsity letter
    A single type; type, collectively; a style of type.
    One who lets out.
    One who retards or hinders.
    To print, inscribe, or paint letters on something.
    To earn a varsity letter (award).
    A paper or cardboard wrapper used to enclose small, flat items, especially letters, for mailing.
    Something that envelops; a wrapping.
    A bag containing the lifting gas of a balloon or airship; fabric that encloses the gas-bags of an airship.
    A mathematical curve, surface, or higher-dimensional object that is the tangent to a given family of lines, curves, surfaces, or higher-dimensional objects.
    A curve that bounds another curve or set of curves, as the modulation envelope of an amplitude-modulated carrier wave in electronics.
    The shape of a sound, which may be controlled by a synthesizer or sampler.
    The information used for routing a message that is transmitted with the message but not part of its contents.
    An enclosing structure or cover, such as a membrane; a space between two membranes
    The set of limitations within which a technological system can perform safely and effectively.
    The nebulous covering of the head or nucleus of a comet; a coma.
    An earthwork in the form of a single parapet or a small rampart, sometimes raised in the ditch and sometimes beyond it.
    alternative spelling of envelop
    (3).牛津词典 letter envelope
    a character representing one or more of the sounds used in speech; any of the symbols of an alphabet
    the initials of a degree or other qualification
    a school or college initial as a mark of proficiency, especially in sport
    a written, typed, or printed communication, sent in an envelope by post or messenger
    a legal or formal document.
    the precise terms of a statement or requirement; the strict verbal interpretation
    literature
    scholarly knowledge; erudition.
    a style of typeface.
    inscribe letters or writing on
    classify with letters
    be given a school or college initial as a mark of proficiency in sport
    a flat paper container with a sealable flap, used to enclose a letter or document.
    a covering or containing structure or layer
    the outer metal or glass housing of a vacuum tube, electric light, etc.
    the structure within a balloon or non-rigid airship containing the gas.
    a membrane which forms the outer layer of certain viruses.
    a curve joining the successive peaks of a modulated wave.
    a curve or surface tangent to each of a family of curves or surfaces.
    (4).韦伯斯特词典 letter envelope
    One who lets or permits; one who lets anything for hire.
    One who retards or hinders.
    A mark or character used as the representative of a sound, or of an articulation of the human organs of speech; a first element of written language.
    A written or printed communication; a message expressed in intelligible characters on something adapted to conveyance, as paper, parchment, etc.; an epistle.
    A writing; an inscription.
    Verbal expression; literal statement or meaning; exact signification or requirement.
    A single type; type, collectively; a style of type.
    Learning; erudition; as, a man of letters.
    A letter; an epistle.
    A telegram longer than an ordinary message sent at rates lower than the standard message rate in consideration of its being sent and delivered subject to priority in service of regular messages. Such telegrams are called by the Western Union Company day letters, or night letters according to the time of sending, and by The Postal Telegraph Company day lettergrams, or night lettergrams.
    To impress with letters; to mark with letters or words; as, a book gilt and lettered.
    That which envelops, wraps up, encases, or surrounds; a wrapper; an inclosing cover; esp., the cover or wrapper of a document, as of a letter.
    The nebulous covering of the head or nucleus of a comet; - called also coma.
    A work of earth, in the form of a single parapet or of a small rampart. It is sometimes raised in the ditch and sometimes beyond it.
    A curve or surface which is tangent to each member of a system of curves or surfaces, the form and position of the members of the system being allowed to vary according to some continuous law. Thus, any curve is the envelope of its tangents.
    A set of limits for the performance capabilities of some type of machine, originally used to refer to aircraft; - it is often described graphically as a two-dimensional graph of a function showing the maximum of one performance variable as a function of another. Now it is also used metaphorically to refer to capabilities of any system in general, including human organizations, esp. in the phrase push the envelope. It is used to refer to the maximum performance available at the current state of the technology, and therefore refers to a class of machines in general, not a specific machine.
    简典