依据流动平衡原则，根据流场速度分布探讨了部分关键尺寸的确定。针对热塑性聚氨酯材料进行了异型管材机头的设计。
Some key dimensions were confirmed according to the flow balancing theory and the velocity distribution, and a profile-tube die was designed for thermal polyurethane.
依据流动平衡原则，根据流场速度分布探讨了部分关键尺寸的确定。针对热塑性聚氨酯材料进行了异型管材机头的设计。
Some key dimensions were confirmed according to the flow balancing theory and the velocity distribution, and a profile-tube die was designed for thermal polyurethane.
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