aPetroleum (also called crude oil), in the unrefined or crude form, like many industrial feedstocks has little or no direct use and its value as an industrial commodity is only realized after the production of salable products. Even then, the market demand dictates the type of products tha...
Petroleum(also called crude oil), in the unrefined or crude form, like many industrialfeedstocks has little or no direct use and its value as an industrial commodityis only realized after the production of salable products. Even then, themarket demand dictates the type of products that are ...
求翻译,不要直接软件翻译的Passage 1Petroleum(also called crude oil), in the unrefined or crude form, like many industrialfeedstocks has little or no direct use and its value as an industrial commodityis only realized after the production of salable prod
(碳). Oil can also contain other elements. Crude oil, or unprocessed petroleum, is calledsour(酸性原油) when it contains a lot ofsulphur([ˈsʌlfə(r)]硫,硫磺), an impurity. Sour crude requires morerefining(提炼) than sweet crude, which is low in sulphur and, as a result, ...
Petroleum is also called black . (liquid gold / liquid silver) 点击查看答案 第3题 A petroleum liquid has a flash point of 85°F. This... A petroleum liquid has a flash point of 85°F. This is a grade ___. A.B flammable liquid B.C flammable liquid C.D combustible liquid D.E...
PETROLEUMREFINERY PROCESSES 1.Introduction Petroleum(alsocalledcrudeoil),intheunrefinedorcrudeform,likemany industrialfeedstockshaslittleornodirectuseanditsvalueasanindustrialcom- modityisonlyrealizedaftertheproductionofsalableproducts.Eventhen,the marketdemanddictatesthetypeofproductsthatareneeded.Therefore,the val...
托福听力TPO50-L4-Petroleum TPO-50-L4 1.What is the lecture mainly about?A. Efforts to increase the production of petroleum and natural gas B. Problems associated with the refining of dead oil C. Recent improvements in methods used to locate petroleum D. Background information essential to ...
Gasoline is produced by the refinement ofpetroleum. 汽油是由石油经过提炼生产出来的. 辞典例句 Oil shares also suffered production losses , the BritishPetroleum( BP ) shares closed down 1 %. 石油生产股也遭遇卖压, 英国石油 ( BP ) 的股票跌收1%. ...
Petroleum, also called crude oil, is a naturally occurring liquid found beneath the earth’s surface that can be refined into fuel. A fossil fuel, petroleum is created by the decomposition of organic matter over time and used as fuel to power vehicles, heating units, and machines, and can ...
These products are the so-called light oils, such as gasoline, kerosene, and distillate oil. The residue remaining after the light oils are distilled is known as heavy or residual fuel oil and is used mostly for burning under boilers. Additional complicated terming processes rear~ range the ...