spot facing machining的用法和樣例：
例句
- The paper introduces the construction of the tailstock and the machining process of the bore.
文中介紹了靜壓尾架的結構，尾架孔加工工藝。 - The promoted design of the rolling tool used in precisely machining deep holes with an effective multiplex boring machine is introduced.
介紹了高精度深孔加工用高效複合鏜滾壓工具的改進設計。
