采用微电脑控制，螺杆计量。

Controlled by micro-computer and measured by screw.

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讨论了挤出机螺杆计量段的优化设计问题。

The optimal design for metering section of extruder screw was investigated.

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针对头部无螺纹和有螺纹的注塑螺杆，使用POLYFLOW软件数值模拟了注塑机螺杆计量段熔料在注射过程中的三维等温流场。

Three-dimensional isothermal material flows in the metering section of injection molder with different screw heads during injection molding are simulated through POLYFLOW software.

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