developed coal meaning in English

开拓准备回采的煤

Preliminary research on developing coal futures in china
我国开展煤炭期货交易的探讨
On developing coal seam gas resource in shanxi
论山西煤层气资源开发
Developing coal cleaning and processing and lifting economic benefit
发展洗选加工提高经济效益
Developing coal enterprise management imformation system with asp technology
技术开发煤炭企业管理信息系统
Changing shanxi province from the poor into the rich through developing coal bed gas
通过开发煤层气使山西省由穷变富

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