因为会产生大量的空气，所以该提升机既适合多孔产品也适合无孔产品。
A large quantity of air produced, making the VacUp ideal for porous as well as non-porous items.
本发明提升力大，可实现强力提拔，便于处理孔内事故。
The invention has the advantage of large lifting power, so that powerful lift can be realized, and accidents in holes can be conveniently dealt with.
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