目的：研究茶碱的电化学还原和直接电分析。
AIM: To study the electrochemical reduction and direct measurement of theophylline.
通过对云南锡业股份有限公司冶炼分公司反射炉与澳斯麦特炉粗锡还原熔炼直接回收率等技术指标分析和比较，对两种熔炼技术进行了评价。
This paper presents analysis and comparison of direct recovery rate and other technical parameters in crude tin reduction smelting between reverberatory furnace and Ausmelt furnace.
通过对攀钢高炉粉尘利用的分析研究，提出了采用含碳球团直接还原焙烧法处理高炉瓦斯泥的工艺。
By analyzing and researching utilization of BF dust, a technology of dealing with the BF gas slime adopting the containing carbon pellet direct roasting reduction method was put forward.
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