Which of the following is NOT true?A.Crude oil is found below land and water.B.Crude oil is always found a few hundred feet below the surface.C.Pumping and pressure force crude oil to the surface.D.A variety of petroleum products is obtained from crude oil....
Crude oil is always found a few hundred feet below the surface.C. Pumping and pressure force crude oil to the surface.D. A variety of petroleum products is obtained from crude oil.77. Many thousands of hydrocarbon compounds are possible becauseA. the petroleum products vary greatly in ...
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•Permission has been obtained for use of copyrighted material from other sources (including the Internet) •A competing interests statement is provided, even if the authors have no competing interests to declare •Journal policies detailed in this guide have been reviewed ...
4. why should you buy from us not from other suppliers?Shanghai JSN Micro Flow Meter Co., Ltd is family business since 1987.we are the TOP10 manufacturer in China.min flow of JSN micro flow meter is 0.1ml/min,accuracy of JSN micro flow meter is up to 0.2%,working life is mo...
(Americankerosene) a kind of oil which is used as a fuel.This heater burns paraffin;(also adjective) a paraffin lamp.queroseno;parafina Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd. paraffin →parafina Multilingual Translator © HarperCollins Publishers 2009 ...
andheavyfractionsvarysignificantlyfromonecrudeoil to another. When petroleum occurs in a reservoir that allows the crude material to be recovered by pumping operations as a free-flowing dark-to-light colored liquid, it is often referred to as conventional petroleum. In some oil fields, th...
A petroleum resin is obtained from a petroleum fraction of boiling-point below 300 DEG C. and containing cyclodienes and other unsaturated hydrocarbons of not less than 4 carbon atoms, by first contacting the fraction with a tetrachlori... SAEKI OSAMU,WAKAMATSU TAMEO,MORIWAKI SHINSAKU - US 被引...
Petroleum is a complex mixture, consisting primarily of hydrocarbons, derived from ancient living organisms deposited as geological sediments. The composition of petroleum conveniently described in terms of refinery distillation varies greatly from one source to another. The naphtha, middle-distillate, vacuu...
Petroleum dominates the world economy. No other commodity affects everyday life the way petroleum does. Although more than 70% of petroleum is used for transportation, it is an essential raw material for making a variety of products that we use in our ev