| petroleum |
a substance occurring naturally in the earth in sold, liquid, or gaseous state and composed mainly of mixtures of chemical compounds of carbon and hydrogen, with or without other nonmetallic elements such as sulfur, oxygen, and nitrogen.
출처: www.fi.edu/fellows/fellow2/jan99/new/oilvocab.html
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| petroleum |
Crude oil or any fraction thereof that is liquid under normal conditions of temperature and pressure. The term includes petroleum-based substances comprising a complex blend of hydrocarbons derived from crude oil through the process of separation, conversion, upgrading, and finishing, such as motor fuel, jet oil, lubricants, petroleum solvents, and used oil.
출처: www.waterquality.de/hydrobio.hw/PTERMS.HTM
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| petroleum |
A mixture of liquid, gaseous, and solid hydrocarbon compounds found naturally underground. The liquid form of petroleum is called crude oil. Petroleum can be processed (refined) into a number of useful products including asphalt, diesel fuel, fuel oil, gasoline, jet fuel, lubricating oil, and plastics.
출처: www.uwsp.edu/cnr/wcee/keep/Mod1/Unitall/definition...
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| petroleum |
A generic term applied to oil and oil products in all forms, such as crude oil, lease condensate, unfinished oils, petroleum products, natural gas plant liquids, and non-hydrocarbon compounds blended into finished petroleum products.
출처: www.natsource.com/markets/index.asp
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| petroleum |
is a naturally occurring liquid mixture of hydrocarbons believed to have originated from plant and animal matter buried long ago.
출처: www.dac.neu.edu/physics/b.maheswaran/phy1121/data/...
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