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concentrator n. 使集中的人,濃縮器,選礦機 使集中的人,濃縮器,選礦機 concentrator 匯集器; 集訊機 concentrator 集中器 集線器 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 many simultaneously active inputs into one shared channel in such a way that the streams can be separated after transmission. The concentrator's output bandwidth must be at least as great as the total bandwidth of all simultaneously active inputs. A concentrator is one kind of {multiplexing} device. For example, a concentrator may be used to connect 24 2400 bps TTYs to a host via a 57600 bps channel. (2000-03-01)
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