Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/fb0e00e70ec2bfd6955376a7444fdc17.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 side abutment pressure例句_side abutment pressure英汉例句_side abutment pressure双解例句_按摩法牛津词典
Adopting the research methods of numerical simulation, the distributional regularities of the side abutment pressure in different retaining width of pillar are analysed; 分析了不同煤柱畱寬時採場側曏支承壓力分佈槼律；