英文字典中文字典Word104.com



中文字典辭典   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   


安裝中文字典英文字典辭典工具!

安裝中文字典英文字典辭典工具!








  • Cracking (chemistry) - Wikipedia
    In petrochemistry, petroleum geology and organic chemistry, cracking is the process whereby complex organic molecules such as kerogens or long-chain hydrocarbons are broken down into simpler molecules such as light hydrocarbons, by the breaking of carbon–carbon bonds in the precursors
  • CRACKING Definition Meaning - Merriam-Webster
    The meaning of CRACKING is very impressive or effective : great How to use cracking in a sentence
  • Cracking - Chemistry LibreTexts
    Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst
  • What is Cracking? - BYJUS
    Cracking is a chemical process which is used in oil refining To produce by-products such as cooking oil, ethanol, liquefied petroleum gas, diesel fuel, jet fuel and other petroleum distillates, cracking removes large hydrocarbon molecules in raw crude oil What happens during cracking?
  • Crude oil, hydrocarbons and alkanes - AQA Cracking and alkenes - BBC
    Crude oil is a finite resource Petrol and other fuels are produced from it using fractional distillation Cracking is used to convert long alkanes into shorter, more useful hydrocarbons
  • CRACKING definition and meaning | Collins English Dictionary
    Cracking is the process of breaking into smaller units, especially the process of splitting a large heavy hydrocarbon molecule into smaller, lighter components
  • Cracking - definition of cracking by The Free Dictionary
    Define cracking cracking synonyms, cracking pronunciation, cracking translation, English dictionary definition of cracking n Decomposition of a complex substance by the application of steam, a catalyst, or heat, especially the breaking of petroleum molecules into shorter
  • CRACKING Definition Meaning | Dictionary. com
    The process of breaking down complex chemical compounds by heating them Sometimes a catalyst is added to lower the amount of heat needed for the reaction Cracking is used especially for breaking petroleum molecules into shorter molecules and to extract low-boiling fractions, such as gasoline, from petroleum See also hydrocracking


















中文字典-英文字典  2005-2009

|中文姓名英譯,姓名翻譯 |简体中文英文字典