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
notata查看 notata 在百度字典中的解释百度英翻中〔查看〕
notata查看 notata 在Google字典中的解释Google英翻中〔查看〕
notata查看 notata 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:


  • Benzene - Wikipedia
    Benzene is an organic chemical compound with the molecular formula C 6 H 6 The benzene molecule is composed of six carbon atoms joined in a planar hexagonal ring with one hydrogen atom attached to each As it contains only carbon and hydrogen atoms, benzene is a hydrocarbon
  • Benzene and Cancer Risk - American Cancer Society
    Benzene is a colorless, flammable liquid with a sweet odor Learn what we know about benzene and cancer risk
  • Benzene | Chemical Emergencies | CDC
    Key points Benzene is a colorless or light-yellow liquid chemical at room temperature Signs and symptoms of benzene poisoning depend on how you were exposed Get clean and get medical care if you were exposed
  • Benzene | C6H6 | CID 241 - PubChem
    It evaporates into the air very quickly and dissolves slightly in water It is highly flammable and is formed from both natural processes and human activities Benzene is widely used in the United States; it ranks in the top 20 chemicals for production volume
  • Benzene | Definition, Discovery, Structure, Properties, Uses | Britannica
    Benzene, simplest organic, aromatic hydrocarbon and parent compound of numerous important aromatic compounds Benzene is a colorless liquid with a characteristic odor and is primarily used in the production of polystyrene It is highly toxic and is a known carcinogen
  • Benzene - U. S. Environmental Protection Agency
    Benzene is found in emissions from burning coal and oil, motor vehicle exhaust, and evaporation from gasoline service stations and in industrial solvents These sources contribute to elevated levels of benzene in the ambient air, which may subsequently be breathed by the public
  • Benzene - Cancer-Causing Substances - NCI
    Benzene is a colorless or light-yellow liquid chemical at room temperature It is used primarily as a solvent in the chemical and pharmaceutical industries, as a starting material and an intermediate in the synthesis of numerous chemicals, and in gasoline
  • Benzene - Occupational Safety and Health Administration
    Benzene is a component of products derived from coal and petroleum and is found in gasoline and other fuels Benzene is used in the manufacture of plastics, detergents, pesticides, and other chemicals
  • Benzene - American Chemical Society
    In the 20th century, benzene, derived mostly from petroleum, came into widespread production for use as a solvent and as a starting material for manufacturing other organic compounds, especially ethylbenzene, which is converted to styrene
  • Benzene - NIST Chemistry WebBook
    NIST subscription sites provide data under the NIST Standard Reference Data Program, but require an annual fee to access The purpose of the fee is to recover costs associated with the development of data collections included in such sites Your institution may already be a subscriber





中文字典-英文字典  2005-2009