The polished side is fat glossy luster, the fracture is in dark luster. 拋光面為油脂玻璃光澤，斷口為油脂暗淡光澤。
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. 額外的固位由口腔頜面部肌肉在行使功能時靜休息或施壓於義齒拋光面而提供，這提示我們，這些肌肉作用部位的基托表面形態應自然的適合於肌肉以加強邊緣封閉。
The lever spare part primarily processes the surface and bores. 砂輪頭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. 對混粉電火花加工表面的顯微裂紋進行了研究。
