Warning: file_put_contents(/www/wwwroot/ppbbbu/n94.cn/cache/f1dbd09d0f450e419a7e5c5a77382cc6.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/n94.cn/index.php on line 55 blast gate是什么意思，blast gate的翻译，blast gate音标、读音、用法和例句_94生活常识网有道词典
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。