With veneers and inlays, a technician is often limited, by preparation and strength considerations, to pressing the veneer full contour and characterizing the external surface with stain.

制作瓷贴面与嵌体时，技师常常受到牙体预备与强度考虑的限制。只能铸出全形态后在外表面染色。

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A model of external material-offering system of charge pressing machine is also analyzed and established , which sets up a good base for the experiment designing .

分析建立了压丸机外供料系统的模型，为试验设计打下了良好的基础。

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That would get us to both internal and external transparency and that I think is something that should have already been done and there???s a pressing need for that kind of information.

FORBES: Intelligent Investing Briefing Book