The polished side is fat glossy luster, the fracture is in dark luster. 抛光面为油脂玻璃光泽，断口为油脂暗淡光泽。
Additional retentive forces are supplied by the natural action of the oral and facial musculature resting and acting against the polished surfaces of the dentures. 额外的固位由口腔颌面部肌肉在行使功能时静休息或施压于义齿抛光面而提供，这提示我们，这些肌肉作用部位的基托表面形态应自然的适合于肌肉以加强边缘封闭。
The lever spare part primarily processes the surface and bores. 砂轮头架的主要加工表面是平面及孔。
In this work,the surface microcracks machined by powder-mixed EDM were researched. 对混粉电火花加工表面的显微裂纹进行了研究。
