设置安全排气阀，在电机转速达到额定转速后，自动打开排气阀，保证起动器的安全可靠运行。
To guarantee running safety, it needs to set the safey exhausting valve, which will be opened automatically when reaching the rated speed.
其他熟悉的例子包括对灶具燃气控制，小阀门安装在洗衣机和洗碗机，安全装置安装在热水系统，在汽车和发动机排气阀。
Other familiar examples include gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and valves in car engines.
其他熟悉的例子包括对灶具燃气控制，小阀门安装在洗衣机和洗碗机，安全装置安装在热水系统，在汽车和发动机排气阀。
Other familiar examples include gas control valves on cookers, small valves fitted to washing machines and dishwashers, safety devices fitted to hot water systems, and valves in car engines.
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