Warning: file_put_contents(/www/wwwroot/ppbbu/bieo.cn/cache/0418bd363b27b4fce60b7db46b10bce2.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/bieo.cn/index.php on line 58 bastard coal例句_bastard coal英汉例句_bastard coal双解例句_衣物护欧路词典
The percussive speed of the material is adjustable to obtain different impact so as to separate bastard coal with different hardness. 物料的撞击速度可以调整，以获得不同的冲击力，对不同硬度的煤矸进行分 离。 ip.com