step motor的用法和樣例：
例句
- The crux of the matter in the machine tool numerical control system is the operating control of a stepping motor.
步進電動機的運動控制是機床數控系統的關鍵問題。 - Stepper motor drivers head the list of output devices.
步進馬達驅動器在輸出設備中排在首位。 - The odometer is mechanical, driven by a stepper motor.
里程錶為機械式，由一個步進馬達帶動。
