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Drawing mechanisms for top coal in longwall top coal caving(LTCC):A review of two decades of literat
[期刊论文] 作者：Jiachen Wang,Shengli Yang,Weijie Wei,Jinwang Zhang,Zhengyang Song,
来源：国际煤炭科学技术学报（英文版） 年份：2021
This review details the state of the art in research on top coal drawing mechanisms in Longwall top coal caving (LTCC) by examining the relevant literature over the last two decades.It starts with an introduction of the brief history and ba......
[期刊论文] 作者：Zhengyang SONG,Jie TANG,Tracy Xiao LIU,Wenjiang ZHENG,Lili WU,Wenzheng FENG,Jing ZHANG,
来源：中国科学：信息科学（英文版） 年份：2021
Nowadays,massive open online courses (MOOCs),are at-tracting widespread interest as an alternative education model.Several MOOCs platforms,such as Coursera,edX,and Udacity have been built and they provide low-cost op-portunities for anyone ......
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