concentrator

n. 集中者, 浓缩器, 选矿机 [计] 集线器, 集中器

词形变化

concentrators 复数 concentrators

释义与例句

n.
  1. 1.

    One who concentrates.

  2. 2.

    A hub.

    媒体 工程
  3. 3.

    An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air.

    商务 采矿
  4. 4.

    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.

    工程 政治 军事

词源

From concentrate + -or.

来源：wiktionary