[問題] 吸塵器與低壓
在低氣壓的狀況下,同一吸塵器的吸管內流速會增加還是減少呢??
因為阻力變小,馬達狂抽 所以流速變快?
因為空氣稀薄,馬達空轉(壓差小),所以流速變慢?
還是說會先降後升 又或先升後降??
又 流量應該是一路下降吧?
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