Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/e64c930c7f8231706b978d91ff4ede8c.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 blast gate例句_blast gate英汉例句_blast gate双解例句_按摩法牛津词典
In order to adapt the need of loading and unloading drill rod of iron gate-opening machine for large-scale blast furnace, the new change rock drill machine is designed. 为适应大型高炉开铁口机的装卸钎杆需要，设计开发了新型换钎机。