electric spark machining的用法和樣例：
例句
- Electric discharge machining, creping, and blasting are possible after welding, as well as heat-treating and nitriding.
焊補后的模具可進行放電加工，熱處理及滲氮處理等。 - Although those materials can be machined using the ECDM method, its machining mechanism is still indeterminate.
雖然電化學放電加工法可加工上述材料，但其加工機制尚有很多不明確之處。
