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1.The vari-volume blower is an essential tool for cleaning the dust from the air ducts.
可变容量鼓风机是清理空气管道中灰尘的必备工具。
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2. The vari-volume blower is used to distribute air evenly across the room.
可变容量鼓风机用于将空气均匀分布在房间内。
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3.The vari-volume blower is a popular choice for those who want to save energy and reduce their carbon footprint.
可变容量鼓风机是那些想要节省能源并减少碳足迹的人的热门选择。