["L' pomp centrifugee permet d d'admettre un vide d'aspiration",,"Chers amis de de la mer, pourquoi la valeur d'aspiration admise d'une pompe centrifuge diminue-t-elle avec l'augmentation de la débit? Expliquez-le."",",",",",",",",",",",",",",",","z,",",",",",",",",",",",",",",",",",",",",",",","z",",",",",","",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",",","z","z""z""z""z""z""z"""z"""z""z"""z""z""z""z""z""z","z""z""z""z""zz""z","z""z""zz""z""zz""z""zz""z""zz""z""zz""zz""z""zz""z""zz""z""zz""z""zz""z""zz""z""zz""zz""zz""zz""z""zz""z""zz""zz""zz""zz""zz""z""z","z""z""zz""z""zz""z""zz""zz""z""zz""z""zz""z""zz""zz""zz""z""z""","z""z""z""z""zz""zz""zz""z""zz""z""zz""z""zz""z""zz""z""zz""z""zz""z""zz""z""zz""zz""z""zz""z""zz""z""zz""z""zz""zz""z""zz""z""zz""zz""zz""zz""zz""z""z"z""z""zz""z""zz""zz""zz""z""z""z""z""zz""zz""zz""zz""z""zz""zz""zz""zz""z""zz""z""zz""zz""z""zz""zz""zz""zz""z""zz""zz""zz""zz""z""zz""zz""zz""zz""z""zz""zz""zz""zz""z""zz""zz""zz""zz""zz""zz""zz""z""zz""z""zz""zz""zz""zz""zz""zz""zz""zz""zz"z""z""z""z""zz""zz""z""zz""z""zz""zz""zz""z""z""z""zz""zz""zz""zz""z""z""z""z""z""zz""z""zz""zz""z""z"z""z""z""z""z""zz""zz""z""zz""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""z""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""zz"zz""z""z""z""zz""zz""z""zz""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""zz"z""z""zz""zz"zz""z""z""z"z""z""z"z""z"z"z"z""zz""zz""z"z"z"z""z"z"z"z"z""z"z"z""zz""zz"z"z"z"z"z"z"z"z""z"z"z"z"z"z"z"z"z"z"z"z""z"z"z"z"z"z""z"z"z"z"z"z"z"z"z"z"z"zz""zz"z"z"zz"z"zz"z"z"z"z"z"zz"z"zz"z"z"z"z"z"z"z"z"z"z"z"zz"z"z"z"z"z"zz"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"zz""z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"zz"z"z"z"z"z""z"z""z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"z"zz"z"z"z"z"z"z"z"z"zz"z"z"z"zz"zz"z"z"zz"z"z"z"z"z"z"z"z"z"z"z"z"z"z"zz"z"z"z"z"z"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"z"] ["La' grandeur de de de de de de de de de dede lala' conduitetrzdezdezla'asuctionzdezdezla'dresdezdezla'dzdezdezla' résistancezdezdezcaausedezdezla'zduitzdezdezla'dzdezdezla'dzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzdezdezla'zduitzde"]zde""z""z""z""zz""z""z""zz""z""z""zz""z""zz""z""zz""z""zz""zz"z""z""zz""z""zz""zz"z""zz""z""zz""zz"z""z""zz""zzz""z"z"z""z""zz""zz"zz""z""zz""zzz""zz"z"zz"z"z"z"z"z"zz""zz"zz""z""zz""zz"zz""zz"zz"z"z"z"z"zz"z"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zzz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zz"zzz"zzz"zz"zz"zz"zz"zzz"zz"zz"zz"zzz"zzz"zz"zzzzz"z"z"zz"z"zz"zz"zz"zz"zz"zzz"zz"zz"zzz"zz"zz"zz"zzz"zz"zzzz"z"zz"zz"zz"zzz"zz"zzz"zz"zz"zzzzzz"zzzzzz"zz"zz"zzz"z"]]]"
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各位海友，离心泵的允许吸入真空度为什么随流量增大而减小？解释一下。
流量大吸入管路阻力大的原因。