regulating starting rheostat

例句：

1. 1. Theregulator is used to control the flow ofgases in a system.
   调节器用于控制系统中气体的流动。
2. 2. The startingrheostat is responsiblefor starting the engine when thecar is turned on.
   起动继电器负责在汽车启动时启动发动机。
3. 3. The engineeradjusted the regulator to improve the efficiency ofthe heating system.
   工程师调整了调节器以提高加热系统的效率。