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1 | олефины
 олефин
chem. olefin; alkene
polym. unsaturated hydrocarbon; olefin
tech. olefine
 олефины
avia. olefines
chem. ethylenic hydrocarbons
ecol. ethylene hydrocarbons
O&G, oilfield. olefins
oil.proc. olefins, vol %

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