煤系 meaning in English
coal formation
coal measures
coal series
coalmeasures
Examples
- Phase transformation for calcined coal measures kaolinite
煅烧煤系高岭石的相转变 - Preparation of amorphous silica from coal - based kaolin
用煤系高岭土制取白炭黑的研究 - Study on synthesis of cordierite by coal - series kaolin
煤系高岭土合成堇青石工艺研究 - Research on superfine processing of rigid kaolin in coal measures
煤系高岭土及其深加工 - Coal measures seismic wave regional development characters
煤系地层地震波区域性发育特征