48 在金合金嵌體邊緣進行研光(burnishing)時,最適當的研磨材料是:(A)碳化矽磨錐(carborundum point, green stone)(B)砂紙捲(sand paper poi
問題詳情
48 在金合金嵌體邊緣進行研光(burnishing)時,最適當的研磨材料是: (A)碳化矽磨錐(carborundum point, green stone) (B)砂紙捲(sand paper point) (C)氧化鋁磨錐(aluminum oxide point, white stone) (D)鑽石銼(diamond dresser)