英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典   快递查询 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       
分享到: 更多








请输入英文单字,中文词皆可:

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



请选择你想看的字典辞典:
单词字典翻译
h查看 h 在百度字典中的解释百度英翻中〔查看〕
h查看 h 在Google字典中的解释Google英翻中〔查看〕
h查看 h 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • 现代汉语词典_在线查询词语的意思_词语解释大全_中华字典_在线词典
    点击相应的拼音索引,不用输入一个字,按拼音顺序查找,就可找到相应词语。也可从以上搜索框百度一下,全站搜索相应词语。包括中华字典在线查询、在线词语解释、词语大全。另有脱机使用的词典,包括:近义反义别名词典 名言词典 古文词典 英汉词典 等
  • 磋商是什么意思_磋商的解释_汉语词典_词典网
    磋商的解释 [consult;advise with] 仔细 商量、研究 与自愿的非营利性组织 合作和磋商 详细解释 互相商议;交换意见。 《二十年目睹之怪现状》第一百回:“如此往返磋商,到底五十块洋钱成的交。 ” 鲁迅 《彷徨·幸福的家庭》:“总之这第一碗一定是‘龙虎斗’,无可磋商。
  • 于字的解释---在线新华字典
    引进比较对象,意思相当于“比”〖than〗 甚于妇人。——《战国策·赵策》 毛先生以三寸之舌,强于百万之师。——《史记·平原君虞卿列传》 同于真。——清·薛福成《观巴黎油画记》 又 同于幻。 近于自然。——蔡元培《图画》 又如:人民的利益高于一切
  • 嬗变是什么意思_嬗变的解释_汉语词典_词典网
    嬗变的解释:(1) [transmutation]∶蜕变(2) 一种元素通过核反应转化为另一种元素 b ∶ 一种核素转变为另一种核素(3) [permutation]∶彻底改变(如特征或条件的改变)发生在物理世界,在线词典。
  • 方兴未艾的意思_方兴未艾是什么意思的成语解释_起名网
    方兴未艾是什么意思?起名网成语词典为你提供方兴未艾的意思及解释, 方兴未艾成语接龙,方兴未艾成语造句,以及方兴未艾相关成语名字起名推荐。 康熙字典 成语词典
  • 一的解释|一的意思|汉典“一”字的基本解释
    “一”字的解释,释义,异体字,音韵方言,部首笔画,康熙字典,说文解字,字源字形 查询索引 汉字拆分查询 汉字部件检索 字典部首索引 字典繁体部首 字典拼音索引 字典注音索引 康熙部首索引
  • 鹤立鸡群的意思_鹤立鸡群是什么意思的成语解释_起名网
    鹤立鸡群是什么意思?起名网成语词典为你提供鹤立鸡群的意思及解释, 鹤立鸡群成语接龙,鹤立鸡群成语造句,以及鹤立鸡群相关成语名字起名推荐。 康熙字典 成语词典
  • 近义词大全|近义词查询、同义词查询_快学网
    近义词查询小提示:可以输入完整词语、开头汉字及拼音查询,如:凭借、凭、ping 近义词简介:近义词,拼音:jìn yì cí,英文:parasynonyms,是指意思相近的词语。近义词是词汇意义相同或相近的词语。
  • 反义词大全_反义词|在线反义词查询_快学网
    反义词查询小提示:可以输入完整词语、开头汉字及拼音查询,如:凭借、凭、ping 反义词简介:反义词就是两个意思相反的词,包括:绝对反义词和相对反义词。分为成对的意义相反、互相对立的词。如:真-假,动-静,拥护-反对。
  • 哈希(hash)表查找速度为什么那么快?快在哪里了?_一缕阳光a的博客-CSDN博客_哈希表为什么查询快
    一、前情回顾:在程序中有时候需要存放对象,容器应运而生。容器分为集合和Map。集合在这里不说,说书Map。Map在英语中是地图的意思,这个名字真是起的好,可以让人顾名思义。Map,就是存放键值对的结构。也就是说,只要找到键,就能找到对应的值,就跟查字典一样。





中文字典-英文字典  2005-2009

|MD5加密,解密 |中文认字识字与学习