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Pump hose aeration head
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原始马达是桶装水上的抽水器,坏了之后,刚好外接一个5V左右的电压可以用来给鱼打氧气使用。打氧气软管为抽水器自带的抽水软管,废物利用将抽水,改成喷气,软管换一下出气那头就行。
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