vacuum manifold

基本解释

The piston moves up and down in the piston chamber primarily in response to changes in intake manifold vacuum .
活塞主要因进气歧管真空度的变化而在活塞腔内上下移动。
www.translation-dictionary.net
I am using it , vacuum manifold is a kind of equipment for the QIAprep columns, If you ues this kit you have to but it, it is not cheap.
你买的到底是什么试剂盒？如果是单个柱子的，应该是可以用离心机的。