07=()-t909=()-890I =()-EI OE=()-2√ 0=()-9808=()-6609=()-180t=()-890I =()-S907=()-97 相关知识点: 试题来源: 解析 优质解答 反馈 收藏
On the base of the similarity principle, a water model was developed to study the influence factors of inclusion removal in the molten steel of 180 tons RH vacuum refining device.Liquid steel is simulated by Nacl solution, the air is approximate argon, polypropylene simulate inclusions and NaHCO...
求180T训练营资源!!! http://t.cn/A6Ht2Wz7 //@一个智障中二病晚期少女:而且这里是大多数人的起点,无论走了多远,回望来时的路,能看到的是一群人的青春,真的特别美好。以后多数时间平行,偶尔相交的时候相...