The composition of rectangular box deep drawing system of divided variable blank holder force (VBHF) was discussed, its principle and work process of each portion were analyzed.

介绍了分区变压边力矩形件成形系统的组成以及各部分的原理结构，分析了各部分的工作过程。

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Instead of going to System properties to add an environment variable, we can conveniently add it through Edit Configuration dialog box.

并不是在系统属性中添加环境变量，我们可以在编辑配置对话框中很方便地进行添加。

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Since the math model of alternative head box is very complicated and the variable coupling is existed, a fuzzy control system for a steady efflux ratio is proposed in this paper.

本文针对流浆箱数学模型较为复杂且变量之间存在耦合的特点，提出了流浆箱模糊控制方案。

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