煤化工[méi huà gōng]
coal chemical industry
1. danci.911cha.com
1. Mei Huagong：442 Luntai Gongye = 轮胎工业 47 | 443 Mei Huagong = 煤化工 84 | 444 Meitan Jishu = 煤炭技术 15
2. 煤化工在线翻译
2. Coal Chemical Industry：化工行业:chemical industry | 煤化工:Coal Chemical Industry | 化肥工业:chemical fertilizer industry