在利用精密铸造进行批量生产首饰过程中，首饰模型的制作过程是最基本、最重要的生产环节。
In mass production of personal ornament using investment casting, manufacture of the ornament mould is the most important process among the manufacturing processes.
在利用精密铸造进行批量生产首饰过程中，首饰模型的制作过程是最基本、最重要的生产环节。
In mass production of personal ornament using investment casting, manufacture of the ornament mould is the most important process among the manufacturing processes.
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