self-start system

例句：

1. 1.The self-start system allows the car to start without a key.
   这个自启动系统可以让汽车在没有钥匙的情况下启动。
2. 2. The self-start system is designed to save time and energy when starting the engine.
   自启动系统设计用来节省启动引擎时的时间和能源。
3. 3.The self-start system can be used in remote locations where there is no access to a power source.
   自启动系统可以在没有电源供应的偏远地区使用。