Sub-lance carriage fall arrest mechanism relates to an oxygen supply equipment on a top-blown oxygen converter.
副枪小车防坠落机构，涉及一种氧气顶吹转炉上的供氧设备。
Just fall into water to arrest chilly, how tin the tall fever didn't back to be critically ill of territory floor?
只是落水着凉，怎么会高烧不退到了病危的境地？
Just fall into water to arrest chilly, how tin the tall fever didn't back to be critically ill of territory floor?
只是落水着凉，怎么会高烧不退到了病危的境地？
应用推荐