求翻译：本文提出的基于RP技术的电机壳体金属模具制造技术正是在快速成型技术的基础上通过数学模型推导和尺寸精度模拟,建立了模具制造的理论依据,并在生产中采用直接制模铸造工艺,经实际生产验证,取得良好的效果.从而也较好地解决了机电产业中电机壳体模具的制造问题,对于提高我国模具制造的设计水平,缩短研制周期,降低成本和提高制造柔性,都具有十分重要的意义.是什么意思？

The proposed motor shell rp technology-based metal mold manufacturing technology is in rapid prototyping technology based on the mathematical model derivation and dimensional accuracy of simulation, the establishment of the theoretical basis of the mold manufacturing, and directly used in the produc

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