forming a head shape
形成头部形状
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The feeding head shape of a die and a streamlined sprue runner were designed after an analysis on the cross sectional shape and the extrusion forming ability of PA66 material.
通过对异型材截面形状及原材料挤出成型性能分析，设计了正确的口模形状及合理的流线形流道；
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