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 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       







请输入英文单字,中文词皆可:

neodymium    
n. 钕



neodymium
n 1: a yellow trivalent metallic element of the rare earth
group; occurs in monazite and bastnasite in association
with cerium and lanthanum and praseodymium [synonym:
{neodymium}, {Nd}, {atomic number 60}]

Neodymium \Ne`o*dym"i*um\, n. [NL. Dee {Neo-}, and {Didymium}.]
(Chem.)
The chemical element of atomic number 60, one of the rare
earth elements. Symbol Nd. Atomic weight 144.27.

Note: It is a rare metallic element occurring in combination
with cerium, lanthanum, and other rare metals, and
forming amethyst-colored salts. It was originally
thought to be part of a supposed new element didymium,
obtained from cerite in 1843. Later this was resolved
into two elements, neodymium and praesodymium by von
Welsbach in 1885. It is chiefly trivalent. It is a
faintly yellow metal.
[1913 Webster PJC]

neodymium
Symbol: Nd
Atomic number: 60
Atomic weight: 144.24
Soft bright silvery metallic element, belongs to the lanthanoids. Seven
natural
isotopes, Nd-144 being the only radioactive one with a half-life of
10^10
to 10^15 years. Six artificial radioisotopes have been produced. The
metal is used in glass works to color glass a shade of violet-purple and
make it dichroic. One of the more reactive rare-earth metals, quickly
reacts
with air. Used in some rare-earth alloys. Neodymium is used to color
the glass used in welders' glasses. Neodymium is also used in very
powerful, permanent magnets (Nd2Fe14B). Discovered by Carl F. Auer von
Welsbach in Austria in 1885 by separating didymium into its elemental
components {praseodymium} and neodymium. The name comes from the Greek
words
"neos didymos" which means "new twin". Neodymium should be considered
highly toxic, however evidence would seem to show that it acts as little
more than a skin and eye irritant. The dust however, presents a fire and
explosion hazard.


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


  • Neodymium - Wikipedia
    Neodymium is a chemical element; it has symbol Nd and atomic number 60 It is the fourth member of the lanthanide series and is considered to be one of the rare-earth metals It is a hard, slightly malleable, silvery metal that quickly tarnishes in air and moisture
  • 钕(化学元素)_百度百科
    钕(Neodymium),元素周期表第六周期第3族,镧系元素,元素符号Nd,原子序数60,相对原子质量144 24。 钕是较软的银白色或微黄色金属,有六方和立方两种晶系。 相对密度为7 004g cm3(六方,20℃),6 8g cm3(立方,20℃),熔点1024℃,沸点3074℃。
  • [Nd]钕 (Neodymium) - MC百科|最大的Minecraft中文MOD百科
    有 3 个已收录的整合包使用了 [Nd]钕 (Neodymium) 。 整合包检索 如何下载? 使用新的 OpenGL 功能来重新实现方块渲染以提高性能。 使用新的 OpenGL 功能来重新实现方块渲染以提高你的游玩感受。 据报道,它还修复了使集成 Intel GPU 运行 Minecraft 时发生的图形错误。 建议安装 CoreTweaks 以获得更全面的修复。 在不移动镜头的情况下进行了测试,在和平难度下。 一旦更新的区块数量达到个位数并且 FPS 稳定下来,就会开始测量 FPS。 *其中:OF 代表 高清修复 1 7 10_HD_U_D6,FC 代表 快速工艺 1 23。 (目前这是在 1 7 10 最佳的 OF 和 FC 的组合,不加最新版的原因将会在下面说明)
  • 钕 - 维基百科,自由的百科全书
    钕 钕 nǚ (英語: Neodymium;舊譯 釢[註 1] 、 鋖),是一種 化學元素,其 化學符號 为 Nd, 原子序數 为60, 原子量 為 144 242 u,属于 镧系元素,也是 稀土元素 之一。
  • Neodymium | Rare Earth Element, Uses Properties | Britannica
    neodymium (Nd), chemical element, a rare-earth metal of the lanthanide series of the periodic table Neodymium is a ductile and malleable silvery white metal It oxidizes readily in air to form an oxide, Nd 2 O 3, which easily spalls, exposing the metal to further oxidation
  • Neodymium - Element information, properties and uses | Periodic Table
    Element Neodymium (Nd), Group 19, Atomic Number 60, f-block, Mass 144 242 Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images
  • Neodymium | Nd (Element) - PubChem
    Chemical element, Neodymium, information from authoritative sources Look up properties, history, uses, and more
  • 钕铁硼_百度百科
    钕磁铁(Neodymium magnet)也称为钕铁硼磁铁(NdFeB magnet),是由钕、铁、硼(Nd2Fe14B)形成的四方晶系晶体。 于1982年,住友特殊金属的佐川真人发现钕磁铁。 这种磁铁的磁能积(BHmax)大于钐钴磁铁,是当时全世界磁能积最大的物质。
  • Neodymium | Nd | CID 23934 - PubChem
    Neodymium | Nd | CID 23934 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety hazards toxicity information, supplier lists, and more
  • Neodymium Facts – Symbol Nd or Atomic Number 60
    Neodymium is a silvery-white rare earth metal with atomic number 60 and element symbol Nd It is one of the most widely used lanthanides due to its powerful magnetic properties It forms extremely strong permanent magnets, critical in technologies ranging from electric motors to smartphones





中文字典-英文字典  2005-2009