或者，逐渐暗淡，终于慢慢地熄灭。

Or it dims and eventually dies out.

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当门开关关闭(车门打开)的引脚电压慢慢上升8以上的三角形产生短期占空比输出波形的负峰和一个暗淡的灯光。

When the door switch is closed (car door open) the voltage on pin 8 slowly rises above the negative peaks of the triangle wave producing a short duty cycle output and a dim light.

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