翻訳と辞書 |
Con"centra°tor (), n.(Mining) An apparatus for the separation of dry comminuted ore, by exposing it to intermittent puffs of air. Knight.
Con"centra°tor n.(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.
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