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h    音标拼音: ['etʃ]
n. 字母h

字母h

H
n 1: a nonmetallic univalent element that is normally a
colorless and odorless highly flammable diatomic gas; the
simplest and lightest and most abundant element in the
universe [synonym: {hydrogen}, {H}, {atomic number 1}]
2: a unit of inductance in which an induced electromotive force
of one volt is produced when the current is varied at the
rate of one ampere per second [synonym: {henry}, {H}]
3: the constant of proportionality relating the energy of a
photon to its frequency; approximately 6.626 x 10^-34 joule-
second [synonym: {Planck's constant}, {h}]
4: the 8th letter of the Roman alphabet [synonym: {H}, {h}]
5: (thermodynamics) a thermodynamic quantity equal to the
internal energy of a system plus the product of its volume
and pressure; "enthalpy is the amount of energy in a system
capable of doing mechanical work" [synonym: {heat content},
{total heat}, {enthalpy}, {H}]

H \H\ ([=a]ch),
the eighth letter of the English alphabet, is classed among
the consonants, and is formed with the mouth organs in the
same position as that of the succeeding vowel. It is used
with certain consonants to form digraphs representing sounds
which are not found in the alphabet, as sh, th, [th], as in
shall, thing, [th]ine (for zh see [sect]274); also, to modify
the sounds of some other letters, as when placed after c and
p, with the former of which it represents a compound sound
like that of tsh, as in charm (written also tch as in catch),
with the latter, the sound of f, as in phase, phantom. In
some words, mostly derived or introduced from foreign
languages, h following c and g indicates that those
consonants have the hard sound before e, i, and y, as in
chemistry, chiromancy, chyle, Ghent, Ghibelline, etc.; in
some others, ch has the sound of sh, as in chicane. See Guide
to Pronunciation, [sect][sect] 153, 179, 181-3, 237-8.
[1913 Webster]

Note: The name (aitch) is from the French ache; its form is
from the Latin, and this from the Greek H, which was
used as the sign of the spiritus asper (rough
breathing) before it came to represent the long vowel,
Gr. [eta]. The Greek H is from Ph[oe]nician, the
ultimate origin probably being Egyptian. Etymologically
H is most closely related to c; as in E. horn, L.
cornu, Gr. ke`ras; E. hele, v. t., conceal; E. hide, L.
cutis, Gr. ky`tos; E. hundred, L. centum, Gr.
"e-kat-on, Skr. [.c]ata.
[1913 Webster]

{H piece} (Mining), the part of a plunger pump which contains
the valve.
[1913 Webster]


H \H\ (h[aum]). (Mus.)
The seventh degree in the diatonic scale, being used by the
Germans for B natural. See {B}.
[1913 Webster]


Ion \I"on\ ([imac]"[o^]n), n. [Gr. 'io`n, neut, of 'iw`n, p. pr.
of 'ie`nai to go.]
1. (Elec. Chem.) an atom or goup of atoms (radical) carrying
an electrical charge. It is contrasted with neutral atoms
or molecules, and free radicals. Certain compounds, such
as sodium chloride, are composed of complementary ions in
the solid (crystalline) as well as in solution. Others,
notably acids such as hydrogen chloride, may occur as
neutral molecules in the pure liquid or gas forms, and
ionize almost completely in dilute aqueous solutions. In
solutions (as in water) ions are frequently bound
non-covalently with the molecules of solvent, and in that
case are said to be solvated. According to the
electrolytic dissociation theory, the molecules of
electrolytes are divided into ions by water and other
solvents. An ion consists of one or more atoms and carries
one unit charges of electricity, 3.4 x 10^{-10}
electrostatic units, or a multiple of this. Those which
are positively electrified (hydrogen and the metals) are
called {cations}; negative ions (hydroxyl and acidic atoms
or groups) are called {anions}.

Note: Thus, hydrochloric acid ({HCl}) dissociates, in aqueous
solution, into the hydrogen ion, {H}, and the chlorine
ion, {Cl-}; ferric nitrate, {Fe(NO3)3}, yields the
ferric ion, {Fe}, and nitrate ions, {NO3-}, {NO3-},
{NO3-}. When a solution containing ions is made part of
an electric circuit, the cations move toward the
cathode, the anions toward the anode. This movement is
called migration, and the velocity of it differs for
different kinds of ions. If the electromotive force is
sufficient, electrolysis ensues: cations give up their
charge at the cathode and separate in metallic form or
decompose water, forming hydrogen and alkali;
similarly, at the anode the element of the anion
separates, or the metal of the anode is dissolved, or
decomposition occurs. Aluminum and chlorine are
elements prepared predominantly by such electrolysis,
and depends on dissolving compounds in a solvent where
the element forms ions. Electrolysis is also used in
refining other metals, such as copper and silver. Cf.
{Anion}, {Cation}.
[Webster 1913 Suppl.]

2. One of the small electrified particles into which the
molecules of a gas are broken up under the action of the
electric current, of ultraviolet and certain other rays,
and of high temperatures. To the properties and behavior
of ions the phenomena of the electric discharge through
rarefied gases and many other important effects are
ascribed. At low pressures the negative ions appear to be
electrons; the positive ions, atoms minus an electron. At
ordinary pressures each ion seems to include also a number
of attached molecules. Ions may be formed in a gas in
various ways.
[Webster 1913 Suppl.]

1. A simple {markup} language intended for quick conversion of
existing text to {hypertext}.

2. A method of marking common words to call attention to the
fact that they are being used in a nonstandard, ironic, or
humorous way. Originated in the fannish catchphrase "Bheer
is the One True Ghod!" from decades ago. H-infix marking of
"Ghod" and other words spread into the 1960s counterculture
via underground comix, and into early hackerdom either from
the counterculture or from SF fandom (the three overlapped
heavily at the time). More recently, the h infix has become
an expected feature of benchmark names (Dhrystone, Rhealstone,
etc.); this follows on from the original Whetstone (the name
of a laboratory) but may have been influenced by the
fannish/counterculture h infix.

[{Jargon File}]

(1994-11-04)

h [from SF fandom] A method ofmarkingcommon words,
i.e., calling attention to the fact that they are being used in a
nonstandard, ironic, or humorous way. Originated in the fannish
catchphraseBheer is the One True Ghod!” from decades ago.
H-infix marking ofGhodand other words spread into the 1960s
counterculture via underground comix, and into early hackerdom either from
the counterculture or from SF fandom (the three overlapped heavily at the
time). More recently, the h infix has become an expected feature of
benchmark names (Dhrystone, Rhealstone, etc.); this is probably patterning
on the original Whetstone (the name of a laboratory) but influenced by the
fannish/counterculture h infix.

h



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  • 为什么英文字母H一般读作 [h],读音却是 [eit͡ʃʰ]? - 知乎
    The haitch pronunciation of h has spread in England, being used by approximately 24% of English people born since 1982, [7] and polls continue to show this pronunciation becoming more common among younger native speakers
  • H一词的来源是什么? - 知乎
    H是「変態」 (へんたい・Hentai)的首字母,一開始是只是字面意思,後來漸漸演變出色狼、流氓等意,再後來,又衍生出了做愛之意。 所以女生如果說你H,那就是說你是色狼。 如果對你說「Hしよう」,那就是在邀你滾床單。 另外H的發音是「エッチ」,和這個字母在日語裡的正式讀音「エイチ
  • 英语的h是 [h],汉语的h是 [x],确定吗? - 知乎
    下面是google搜索提供的发音指导,搜How to pronounce xxx就会出来,可以发现Huawei的h被丢掉。 看国外电视新闻、视频会发现99%的英语母语者读Huawei就是“娃为”,以至于有华为粉丝宣称这是华为官方钦定的标准发音。 当英语里h在中间时候也一样,例如Did he?
  • c++ - Разница между . h и . hpp - Stack Overflow на русском
    В чем разница между файлами с расширениями h и hpp в C++? Что лучше использовать?
  • 很多人都把字母H读错了? - 知乎
    很多人都把字母H读错了? 不知道为什么很多人都把H读成ei'qu(我没学过音标,所以用拼音来标记单词读音,标出来也只是一个大致读法。 下面的单词读音也是用拼音来标记的),也不知道… 显示全部 关注者 8 被浏览
  • 什么是a站、b站、c站、d站、e站、f站、g站、h站、i站、j站、k站、l站、m站、n站…z站? - 知乎
    A站 A站全称 “AcFun弹幕视频网”,成立于2007年6月,取意于Anime Comic Fun。 她是字母表的第一位,很巧的是,A站其实也是国内第一家弹幕视频网站,同时也算中国二次元文化的第一批发源地。 像现在大家都知道的“金坷垃、鬼畜全明星、我的滑板鞋、小苹果”等老牌鬼畜文化都是原创于A站。
  • 英文字母 H 应该如何发音? - 知乎
    我爸20年前学出来的读音是【A去】,而我顺着从小的语言习惯读作【A吃】。 我坚信中国式英语最终会演变成英语方言的一种,甚至每个省都独占一份英语方言。在中国式英语方言未形成标准的情况下,只要别人听得懂怎么读都是对的。
  • O que são os arquivos com extensão . cpp e . h?
    O h ou hpp conceitualmente são arquivos de cabeçalho e possuem códigos que o compilador precisa para compilar outras partes Em geral ali contém apenas as estruturadas de dados (classes por exemplo) com as assinaturas de métodos e funções, além de implementações que devem ser linearizadas ou gabaritadas
  • 为什么中文日文都用 H 来表达色情? - 知乎
    日语的 H 是来自「変態」(hentai)的首字母。 汉语中有 H 的说法吗? 不只是二次元中直接借用日语的 H? (评论中不少人指出,汉语的 H 可能来自「黄」(huang)的首字母,跟日语相同是巧合) 编辑于 2016-01-18 23:21 夜色祢 虚无主义者





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