: a pump for exhausting gas from an enclosed space
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The sudden contractions between main channels and auxiliary pathways create local velocity increases and swirling patterns that actively pull water out of the gas diffusion layer while simultaneously drawing fresh oxygen toward the catalyst sites, acting like miniature vacuum pumps.—Tejasri Gururaj, Interesting Engineering, 25 Sep. 2025 Those issues led to the delay of payments for preventative maintenance or repairs of a critical medical vacuum pump system and medical air unit at South Coast Global, the hospital’s chief executive officer told state inspectors in December 2024.—Scott Schwebke, Oc Register, 12 July 2025 Most external sealers then require you to close a lid to create a seal while the vacuum pump sucks any air out of the bag before using a heat strip to seal it shut.—Adam Campbell-Schmitt, Bon Appétit, 27 Jan. 2025 In line with those sleep-apnea devices, the OPAP system is designed for nighttime use and is equipped with a programmable vacuum pump that delivers negative pressure to the eyes via a pair of snugly fitting goggles.—IEEE Spectrum, 22 Mar. 2024 See All Example Sentences for vacuum pump
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