lean coal meaning in English
低级煤
贫煤
瘦煤
Examples
- Anthracite coal blended with lean coal and coking coal powder to prepare excellent quality coke
无烟煤配入瘦煤和焦粉制备优质型焦 - Technological research on preparation of foundry formed coke from coke powder mixed with meagre and lean coal
焦粉与贫瘦煤配合制备铸造型焦的工艺研究 - The research showed that for anthracite , lean coal and bituminous , the reaction rate became larger and the ignition activation energy became smaller
结果表明：从无烟煤、贫煤、烟煤，其反应速率越来越大，着火活化能越来越低。 - A linear regression was conducted and the functional relationship was found , which can afford reference for the security of meager - lean coal ' s industry application
对实验数据进行线性回归分析，得出影响因素与最低着火温度的函数关系，从而为贫瘦煤工业应用的安全性提供了一定的参考依据。 - Are about 12 billion tons . the main types of coal are coking coal , gas bituminous coal , lean coal and anthracite , etc . xiangning coal field is one of the three biggest metallurgical coal bases of the whole country , with the characteristics of thick bed ,
首屈一指的煤炭资源，储藏面积1 . 54万平方公里，占总面积的5 % ，总储量960亿吨，探明储量120亿吨，主要煤种有主焦煤气肥煤贫肥煤瘦煤无烟煤等，其中乡宁主焦煤为全国三大主焦煤基地之一，而且煤层厚埋藏浅易开采。