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中石油2016通用英语选读课文53Oil Refining石油炼制

2024-03-28 16:57:30

53. Oil Refining石油炼制1.Primary Refining1.粗炼2.Petroleum refining is the process of separating the many compounds<混合物> present<目前的> in crude petroleum.This process is called fractional distil...

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