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concentrator    
n. 使集中的人,浓缩器,选矿机

使集中的人,浓缩器,选矿机

concentrator
汇集器; 集讯机

concentrator
集中器 集线器

Concentrator \Con"cen*tra`tor\, n. (Mining)
1. An apparatus for the separation of dry comminuted ore, by
exposing it to intermittent puffs of air. --Knight.

2. (Firearms) A frame or ring of wire or hard paper fitting
into the cartridge case used in some shotguns, and holding
the shot together when discharged, to secure close
shooting; also, a device for slightly narrowing the bore
at the muzzle for the same purpose.
[Webster 1913 Suppl.] Concentric


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  • Oxygen Concentrator: Uses, Types and Safety Precautions - WebMD
    What Is an Oxygen Concentrator? An oxygen concentrator is a medical device that gives you extra oxygen Air is made up of about 20% oxygen An oxygen concentrator uses the air in the
  • Best Home Oxygen Concentrators Of 2025 – Forbes Health
    For individuals with conditions that cause low blood oxygen levels, such as heart failure, asthma and chronic obstructive pulmonary disease (COPD), finding the best home oxygen concentrator is
  • Amazon. com: Oxygen Concentrator
    Oxygen Concentrator, Portable Oxygen Concentrator Machine Oxygen Generator for Travel and Home Use, Continuous and Stable Oxygen, with Accessories-JG15
  • 6 Best Home Oxygen Concentrators of 2025
    A home oxygen concentrator is a medical device used to provide supplemental oxygen for those with breathing conditions, such as lung cancer, asthma, or COPD Unlike an oxygen tank, these devices use electrical pumps to filter nitrogen from the air around you and concentrate oxygen levels
  • How Does an Oxygen Concentrator Work? - Inogen
    An oxygen concentrator uses the surrounding atmosphere to create oxygen-rich air by pulling surrounding air into the oxygen machine, compressing it, purifying it and removing nitrogen and other impurities
  • Fort Collins Oxygen Concentrators and Oxygen Supplies
    We provide Top-Rated Oxygen Concentrators and Oxygen Therapy Supplies to Fort Collins, Loveland, Greeley and other northern Colorado cities and counties
  • Oxygen Concentrators: Function, Settings Results
    An oxygen concentrator is a medical device that separates nitrogen from the air around you so you can breathe up to 95% pure oxygen You may need an oxygen concentrator if you have a condition that affects your breathing Some oxygen concentrators are stationary and run on electricity Others run on batteries and are portable
  • Portable vs. Home Oxygen Concentrator: What’s the Difference?
    Oxygen concentrators are oxygen therapy devices that continuously convert room air into nearly pure oxygen, which can help the body receive sufficient oxygen despite any conditions that may prevent proper oxygen intake
  • What Is an Oxygen Concentrator Used For and How Does It Work?
    Discover what an oxygen concentrator is, its uses for respiratory conditions like COPD and sleep apnea, and how it works to provide consistent oxygen support Learn why VARON is a trusted choice
  • Best Continuous Flow Oxygen Concentrators (2025) - Forbes
    To determine the top five continuous flow portable oxygen concentrators, the Forbes Health editorial team gathered and analyzed data on 10 available products, ranking them based on price, available





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