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coal liquefaction
chem.	liquéfaction de la houille; hydrogénation de la houille
energ.ind., industr., chem.	liquéfaction du charbon
nat.res.	hydrogénation du charbon
coal liquefaction The process of preparing a liquid mixture of hydrocarbons by destructive distillation of coal
environ.	liquéfaction du charbon

coal liquefaction: 7 phrases in 3 subjects

Coal	5
Energy industry	1
Research and development	1