略語大辞典 [Env] 23 NMHC non-methane gaseous hydrocarbon 非メタン炭化水素ガス.non-methane gaseous hydrocarbon; e.g.alkanes, alkenes, olefins, aromatic hydrocarbons, alkynes; [Env:E:Chem]. 丸善「略語大辞典」JLogosID : 11863026