self-starting rotary converter

例句：

1. 1.The self-starting engine will start on its own without any help.
   这个自启动引擎将无需任何帮助就能自行启动。
2. 2.The new car has a self-starting ignition system that saves time and fuel.
   这款新车配备了自启动点火系统，既节省时间又节省燃料。
3. 3.The self-starting generator is perfect for emergency power needs.
   自启动发电机非常适合紧急电力需求。