coal cleaning meaning in English
选煤
Examples
- Coal cleaning equipment - performance evaluation
煤净化设备.性能评定 - Reconstruction and improvement of coal cleaning machinery control system
洗煤机控制系统改造 - Developing coal cleaning and processing and lifting economic benefit
发展洗选加工提高经济效益 - The environmental protection of coal mines and the coal clean mining
煤矿区环境保护与煤炭清洁开采