【精品文档】石油冶炼(OilRefining)

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石油冶炼 (Oil Refining)

   石油冶炼 (Oil Refining) 石油冶炼 (Oil Refining)          an important
new industry, oil refining, grew after the civil war. crude oil, or
petroleum   - a dark, thick ooze from the earth        - had been
known   for hundreds    of years, but little    use had ever been
made of it. in the 1850's samuel m. kier, a manufacturer            in
western   pennsylvania,  began     collecting   the oil from   local
seepages and refining it into kerosene. refining, like smelting,
is a proc ...

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关键词：Refining ning Oil ING Fin