plaster mold investment casting
plaster mold investment casting
石膏模熔模铸造
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 key issues for bronze gnomon casting with integrated and clear surface in investment casting in plaster mold involves to prevent large plate from deformation and to ensure full mold filling.
日晷由锡青铜铸造，其铸造技术的关键是防止大平面的变形和保证良好的充型以获得完整、清晰的表面。
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