在技术改造中，我主要负责对梗线生产段进行设计。
In this technologies rebuild, I take charge mostly stem production line design.
介绍了邯钢三轧厂在技术改造中采用的新技术：无水冷金属热滑轨加热炉；
The new techniques applied in reformation in NO. 3 Steel Rolling Plant of Handan Iron and Steel Co.
结合实例论述了小氮肥企业在技术改造过程中应着重考虑的问题，并就此提出了一些建议。
This article takes some examples to introduce some problems which must be laid stress on duringtechnecal modification in small nitrogenous fertilizer factories, It also puts forward some suggestions.
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