粉尘应该被挡在电机之前，否则粘满电机烧毁吸尘器，粉尘被阻挡后再怎么处理出口都是画蛇添足了

来源: 移花接木于 2017-11-19 14:25:06 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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