Take out a blank sheet of paper or open up a word processor where you can type (I prefer the latter because it's faster).

拿出几张空白的纸或者打开一个文字处理软件(我比较倾向于后者，因为它比较快捷)。

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The paper mainly introduces the principle of URWA -100 type cold - roller made in Germany, the computation method of blank dimension , the key point of mould design and application effect analysis.

重点介绍德国URWA-100型冷辗扩机的工作原理、毛坯尺寸计算方法、模具设计要点以及使用效果分析。

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