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
328875查看 328875 在百度字典中的解释百度英翻中〔查看〕
328875查看 328875 在Google字典中的解释Google英翻中〔查看〕
328875查看 328875 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:


  • Olefin | Description, Characteristics, Types | Britannica
    Olefin, compound made up of hydrogen and carbon that contains one or more pairs of carbon atoms linked by a double bond Olefins are important commercial petrochemicals and are produced through various methods, including fluid catalytic cracking
  • What is an Olefin? - BYJUS
    What is an Olefin? Olefins, also known as alkenes, are hydrocarbons that feature one or more double bonds between two adjacent carbon atoms This term is generally used to denote the hydrocarbons that contain at least one double bond
  • Olefin: Definition, Types, Properties Examples Explained
    In chemistry, olefins are more commonly known as alkenes They are a class of unsaturated hydrocarbons, which means they contain at least one carbon-carbon double bond (C=C) in their molecular structure
  • Olefins: Learn Definition, Structure, Formula, Characteristics
    In organic chemistry, olefins are unsaturated hydrocarbons with two double bonds between the carbon atoms and are mainly composed of hydrogen and carbon Olefins include substances like 1,3-butadiene, propylene, ethylene, etc
  • Get to Know Olefins the Uses in the Petrochemical Industry
    Olefins are one of the aliphatic hydrocarbon compounds having a double bond Generally, ethylene and propylene are two olefin products frequently used as raw materials in the petrochemical industry
  • Olefin - an overview | ScienceDirect Topics
    Olefin hydrocarbons (olefins, also called alkenes; general formula: Cn H 2n) are unsaturated hydrocarbon compounds which contain at least one carbon-to-carbon double bond (>C C<)
  • What Is Olefin Used For? Key Applications Explained
    Olefins, also known as alkenes, are unsaturated hydrocarbons characterized by at least one carbon-carbon double bond in their molecular structure This double bond provides a site for chemical reactions, making olefins more reactive than their saturated counterparts
  • What Is An Olefin In Chemistry? - Sciencing
    Olefins belong to a family of organic compounds called hydrocarbons They consist of different molecular combinations of the two elements, carbon and hydrogen Another name for an olefin is an alkene Alkenes contain one or more double bonds between the carbon atoms of the molecule
  • Olefin - Definition, Examples, Structure, Types, Properties, and Formula
    An olefin is a hydrocarbon that has at least one carbon-carbon double bond The simplest olefin is ethylene, which is produced commercially by the cracking of petroleum
  • An Introduction to Olefins - Petro Online
    Olefin is a compound comprising hydrogen and carbon, with at least one pair of carbon atoms Those atoms are linked by a double bond, which – along with the hydrogen and carbon content – makes them an unsaturated hydrocarbon





中文字典-英文字典  2005-2009