经测绘，得65型挤出机模头尺寸。
After surveying and mapping, have 65 type extruder die size.
我们以65型挤出机机头来举例，已知机头装配尺寸，要求设计模芯、模套。
We have 65 type extruder head for example, known as the head assembly size, design requirements, die die sleeve.
前言： 根据双腔中心静脉导管的特点，选择了合适的导管成型工艺，并设计了挤出机机头的芯模和口模。
Based on the characteristics of double cavity central venous catheters, Selected the suitable extruding process, and designed the extruding die.
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