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汽油机冷机需要关闭风门才能启动，热机启动为什么需要打开风门？
汽油机冷机需要关闭风门才能启动，热机启动为什么需要打开风门？
你听得懂的小型发动机发电机零部件原理38/50
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App05:52汽油机冷机需要关闭风门才能启动，热机启动为什么需要打开风门？
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