bn:00021634n
Noun Concept
Categories: Vacuum pumps
EN
condensation pump  diffusion pump  Oil diffusion pump
EN
Vacuum pump used to obtain a high vacuum WordNet 3.0
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EN
Diffusion pumps use a high speed jet of vapor to direct gas molecules in the pump throat down into the bottom of the pump and out the exhaust. Wikipedia
A type of vacuum pump Wikipedia Disambiguation
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