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:


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


  • Periodic Table – Royal Society of Chemistry
    The Royal Society of Chemistry's interactive periodic table features history, alchemy, podcasts, videos, and data trends across the periodic table Click the tabs at the top to explore each section Use the buttons above to change your view of the periodic table and view Murray Robertson’s stunning Visual Elements artwork Click each element to read detailed information
  • Copper - Element information, properties and uses | Periodic Table
    Copper beads have been excavated in northern Iraq and which are more than ten thousand years old and presumably made from native copper, nuggets of which can sometimes be found Copper was widely used in the ancient world as bronze, its alloy with tin, which was used to make cutlery, coins, and tools In China it was used for bells
  • Periodic Table: History
    The Royal Society of Chemistry brings you the history of the elements and the periodic table: Explore each element to find out about its discovery and the scientists involved
  • Gallium - Element information, properties and uses | Periodic Table
    Gallium arsenide has a similar structure to silicon and is a useful silicon substitute for the electronics industry It is an important component of many semiconductors It is also used in red LEDs (light emitting diodes) because of its ability to convert electricity to light Solar panels on the Mars Exploration Rover contained gallium arsenide
  • Magnesium - Element information, properties and uses | Periodic Table
    Magnesium is the eighth most abundant element in the Earth’s crust, but does not occur uncombined in nature It is found in large deposits in minerals such as magnesite and dolomite The sea contains trillions of tonnes of magnesium, and this is the source of much of the 850,000 tonnes now produced each year It is prepared by reducing magnesium oxide with silicon, or by the electrolysis of
  • Periodic Table: printable (A4) | Resource | RSC Education
    The file includes two versions of the periodic table a bold colour-coded version, emphasising readability and a Visual elements version, with fascinating element artwork by Murray Robertson Information for each element includes the name, chemical symbol, atomic number, and relative atomic mass The groups are readily identifiable by colour
  • Development of the periodic table
    Discover the key scientists behind the periodic table including Dmitri Mendeleev, Henry Moseley and John Newlands in the Royal Society of Chemistry's Visual Elements Periodic Table
  • Gold - Element information, properties and uses | Periodic Table
    In this image a traditional alchemical symbol for the element is used It is also used as a sun symbol, and much of the mythology around gold relates to the sun Early alchemists were obsessed by gold and pursued their desire to transmute base metals (usually lead) into gold The image in the background is based on a symbolic representation of an alchemist’s ‘laboratory’
  • Periodic Table: Trends
    Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information
  • Astatine - Element information, properties and uses | Periodic Table
    Element Astatine (At), Group 17, Atomic Number 85, p-block, Mass [210] Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images





中文字典-英文字典  2005-2009