けいたんかすいそ ナフテン系炭化水素 LinksSentence search for ナフテン系炭化水素Sentence search for ナフテンけいたんかすいそKanji details for 系, 炭, 化, 水 and 素Edit in JMdict Noun1. naphthenic hydrocarbon Discussions Log in to talk about this word.