例句與造句

1. The machine uses imported step - servo motor , touch screen , electronic parts and pneumatic component
   本機(jī)采用進(jìn)口步進(jìn)電機(jī)傳動(dòng)，傳動(dòng)更精確；觸摸屏控制，操作簡單；采用進(jìn)口電器件及氣動(dòng)元件。
2. It's difficult to find step-servo motor in a sentence. 用step-servo motor造句挺難的