探讨了稀土化合物用作环保汽油抗爆剂的可能性.Capabilities using rare earth compounds as environmentally friendly gasoline antiknocks were explored.介绍了MMT抗爆剂在中国石油锦西石化公司的使用情况.The article introduces the application status of MMT antiknock additiv...
这三座转炉都是纯氧 顶吹 的.These three converters are all pure oxygen top - blow .L. D. 炼钢法使用炉内砌有耐火砖的氧气 顶吹 转炉.The L. D. Process uses a top - blow oxygen converter lined with heat - resistant brick.这对中小型转炉钢厂比较适宜.This is right medium ...