defuel operation的用法和樣例：
例句
- The control unit regulates the fuel flow to the combustion chamber, during starting and normal operation.
控制組件用來在起動及正常操作期間調節流進燃燒室的燃油量。 - This paper discusses the loading and deformation characters in detail during the dieless cold spinning in single operation to form the vessel end.
本文介紹了大型燃油鍋爐經拼板焊接和冷旋壓加工製造而成的平管板封頭殘餘應力試驗。
