pattern making of the prototype
pattern making of the prototype
原型的图案制作
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The processing procedure of prototype making by rapid prototype and the production process of cast steel box without wax pattern in investment casting were described.
给出了利用RP技术制造非金属原型的工艺流程，介绍了无模具熔模铸造箱体铸钢件的工艺过程。
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