1. He picked off the burs that had stuck to his overcoat. 他摘去粘在大衣上的芒刺。
2. Dental rotary instruments. Burs. Part 1: steel and carbide burs. 牙科用旋转器械。牙钻。第1部分:钢制牙钻和硬质合金牙钻。
3. Dental rotary instruments. Part 2: steel and carbide finishing burs. 牙科旋转器械。第2部分:精制碳钢钻。
4. After the part is complete chamfer all corners and relieve all burs. 部分完成后,倒角的各个角落,减轻所有钻。
5. By contrast, it was 98% above the curve of canal. The ratio of enlarging instruments removal was 98%, fissure burs 100%, broaches 50%. 直根管或根管弯曲以上折断器械因器械类型有较大差异,根管扩大器械取出率为98%、裂钻为100%,拔髓针为50%。