发动机启动以后，点火钥匙回转，在弹簧的压力下，恢复到“开启”位置。
After the engine starts and the ignition key is released, spring pressure returns it to the on position.
转动点火钥匙，弹簧的压力使“开启”位置变为“启动”位置，起动接触器闭合，使得起动电机线圈或磁性开关与电池接通。
When the ignition key is turned against spring pressure past the on position to start, the starting contacts close. This connects the cranking-motor solenoid or magnetic switch to the Battery.
装置刚启动时，管道出现低温冷凝水，膜盒内的液体处于冷凝状态，阀门处于开启位置。
When the device just starts, there appears condensate with low temperature in conduits and the liquid in the bellows is in the condensed state. The trap is turned on.
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