煤化工 meaning in Chinese

chemical processing of coal

Consideration of the prospect concerning coal chemical industry
关于煤化工前途的思考
Analysis of development of coal chemistry industry
煤化工产业发展之我见
Thinking of developing the coal - mechanical industry in henan
关于河南发展煤化工产业的思考
Developing of auto - control position system in push - coke machine
煤化工炼焦推焦车自动走行控制系统的研制
Perspective on development of coal chemical engineering industry in china
关于中国煤化工发展的几点讨论

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