Experimental Simulation and Numerical Analysis of Partial Extraction Pillar Stability--A Case Study of Taiping Coalmine, Jining City, Shandong Province是什麼意思_Experimental Simulation and Numerical Analysis of Partial Extraction Pillar Stability--A Case Study of Taiping Coalmine, Jining City, Shandong Province在線翻譯_英語_讀音_用法_例句