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煤盆地 méipéndì
desert. coal basin
煤盆地同一成煤期内形成含煤岩系的盆地 méipéndì
expl. coal basin
煤盆地
: 18 phrases in 5 subjects
Desert science4
Earth sciences1
Explosives and Explosive Ordnance Disposal6
Oil / petroleum2
Technology5