coal production meaning in English

煤产量
煤炭生产

Discussing the law system for coal production safety
试论煤矿安全生产法体系
Influence of folded structure on coal production
谈褶曲构造对煤矿生产的影响
France has fallen behind ( germany ) in coal production
法国在产煤方面落后（于德国）了
Supervision on administrative license in coal production
浅析煤炭生产的行政许可监管问题
The application of high pressure water fluidics to coal production
高压水射流技术在煤矿生产中的应用

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