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1 fraction the hydrocarbons in crude oil and natural gas that contain four or less carbon atoms in their molecules
Oil: C4 (These include methane, ethane, propane, and butane)Универсальный русско-английский словарь > fraction the hydrocarbons in crude oil and natural gas that contain four or less carbon atoms in their molecules
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2 фракция С4
Polymers: four-carbon fraction
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