Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/893e0b575b587fb5751a2eb61b2d1e43.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 screw conveyor英英字典_screw conveyor剑桥英语解释_screw conveyor柯林斯英文解释_2020年的事情英文词典
1. N a duct along which material is conveyed by the rotational action of a spiral vane which lies along the length of the duct 螺旋输送机 (Also called worm conveyor)[engineering]