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:

einsteinium    
n. 锿



einsteinium
n 1: a radioactive transuranic element produced by bombarding
plutonium with neutrons [synonym: {einsteinium}, {Es}, {E},
{atomic number 99}]

Es \Es\ n.
the chemical symbol for {einsteinium}, a transuranic element
with atomic number 99. The atomic weight of the longest-lived
isotope, with a half-life of 276 days, is 254. The first
isotope discovered, having atomic weight 253 and a half-life
of 20 days, was recognized in 1952 in the debris from a
hydrogen bomb test. As much as 3 micrograms of einsteinium
were produced by a complex process involving long irradiation
of plutonium isotopes in nuclear reactors. Its chemical
properties are those of a trivalent actinide element. --HCP61

Syn: einsteinium, atomic number 99.
[WordNet 1.5 PJC]

einsteinium
Symbol: Es
Atomic number: 99
Atomic weight: (254)
Appearance is unknown, however it is most probably metallic and silver
or gray in color. Radioactive metallic transuranic element belonging to
the
actinoids. Es-254 has the longest half-life of the eleven known isotopes
at
270 days. First identified by Albert Ghiorso and associates in the
debris of
the 1952 hydrogen bomb explosion. In 1961 the first microgram quantities
of
Es-232 were separated. While einsteinium never exists naturally, if a
sufficient amount was assembled, it would pose a radiation hazard.



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:


  • Search - Microsoft Bing
    Search with Microsoft Bing and use the power of AI to find information, explore webpages, images, videos, maps, and more A smart search engine for the forever curious
  • Microsoft Bing | Get to know Bing
    Copilot Search in Bing gives you quick, summarized answers with cited sources and suggestions for further exploration, making it easier than ever to discover more
  • Bing
    Microsoft Bing is a smart search engine that uses AI to help you find information, images, videos, maps, and more
  • Bing Web Search | Microsoft Bing
    On Bing, you can perform various types of searches, including web searches, image searches, video searches, news searches, and map searches Bing uses a complex algorithm to rank search results Factors that influence ranking include relevance to the query, website quality, and user engagement
  • Bing Tests Related Search Interfaces
    Microsoft Bing has been testing some new interfaces for its related searches Some of these interfaces are boxed at the top right section, while others seem to float over elements on the
  • Microsoft Bing - Wikipedia
    Bing offers a broad spectrum of search services, encompassing web, video, image, and map search products, all developed using ASP NET The transition from Live Search to Bing was announced by Microsoft CEO Steve Ballmer on May 28, 2009, at the All Things Digital conference in San Diego, California The official release followed on June 3, 2009
  • Bing Testing Related Searches That Expand To More
    Microsoft is testing expandable related searches in the Bing Search results When you hover your mouse cursor over the related searches, Bing will load more below them
  • How To See All Bing Related Searches - UMA Technology
    This guide shows you where Bing displays related searches, how to reveal more of them on desktop and mobile, and how to use Bing’s official tools to expand your list without relying on risky scraping methods
  • Microsoft’s New Bing has Changed Online Search in the Last 6
    Microsoft’s New Bing has shifted online search from “ranked links only” to “answers that behave like a research assistant ” In the last several releases (roughly the past 6 months in consumer rollout terms), the practical impact is that users now get synthesized responses, references citations, and multi-step chat inside the search experience
  • Learn to use Bing search operators - tecnobits. com
    In this article, We tell you in detail how to take advantage of all Bing operators, its differences from other search engines, practical advice, and many tricks that will make your searches much more effective





中文字典-英文字典  2005-2009