In this paper, studying on computer aided sizing design system of piloted relief valve, expatiate on the capacity of operation, principle of movement and how to choose the parameter when sizing.
本论文通过对石油化工行业先导式泄压阀的计算机辅助设计选型系统的研制，阐述了先导式泄压阀的操作性能、动作原理及选型时的参数选择。
Structure design for software system of tube sizing and nesting.
软件系统的总体设计问题。
Special design for sizing and cooling system by using film and water ring to cool HDPE (PP, ABS) material, which can fit for the requirement of HDPE (PP, ABS).
采用特殊设计的冷却和定径系统，使用水循环冷却HDPE (PP,ABS)原料，适合以上原料的冷却。
Special design for sizing and cooling system by using film and water ring to cool HDPE (PP, ABS) material, which can fit for the requirement of HDPE (PP, ABS).
采用特殊设计的冷却和定径系统，使用水循环冷却HDPE (PP,ABS)原料，适合以上原料的冷却。
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