| 单词 | reactor | 
| 释义 | reactor (once / 2137 pages) n A reactor is where a nuclear reaction is controlled, making it possible to create energy or any number of artificial elements. Reactor these days almost always refers to a nuclear reactor, where atomic fission of uranium or plutonium creates the heat used to make steam to generate electricity. Originally, though, reactor meant a vessel in which chemical processes were made to generate useful products such as nylon and artificial sweetener. These reactors are still used in chemical manufacturing plants.WORD FAMILY reactor: reactorsUSAGE EXAMPLES A quarter century after China fired up its first nuclear reactor, the country is poised to become the world’s biggest producer of nuclear power. Wall Street Journal(Dec 29, 2016) You’re the reactor, doing the majority of your work in silence. New York Times(Dec 21, 2016) The reactor operated until 1963 and President Lyndon Johnson dedicated it as a Registered National Historic Landmark three years later. Washington Times(Dec 19, 2016) 1n (physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements Syn|Hypo|Hyper nuclear reactor atomic pile, atomic reactor, chain reactor, pile a nuclear reactor that uses controlled nuclear fission to generate energybreeder reactor a nuclear reactor that produces more fissile material than it burnsfast reactor nuclear reactor in which nuclear fissions are caused by fast neutrons because little or no moderator is usedgas-cooled reactor a nuclear reactor using gas as a coolantliquid metal reactor a nuclear reactor using liquid metal as a coolantthermal reactor a nuclear reactor in which nuclear fissions are caused by neutrons that are slowed down by a moderatorfusion reactor, thermonuclear reactor a nuclear reactor that uses controlled nuclear fusion to generate energywater-cooled reactor nuclear reactor using water as a coolantBWR, boiling water reactor a nuclear reactor that uses water as a coolant and moderator; the water boils in the reactor core and the steam produced can drive a steam turbinePWR, pressurized water reactor a nuclear reactor that uses water as a coolant and moderator; the steam produced can drive a steam turbine apparatus, setup equipment designed to serve a specific function 2n an electrical device used to introduce reactance into a circuit Hypo|Hyper coil reactor consisting of a spiral of insulated wire that introduces inductance into a circuitarmature coil in which voltage is induced by motion through a magnetic fieldastatic coils an arrangement of coils used in sensitive electrical instruments; the coils are arranged to give zero resultant external magnetic field when a current passes through them and to have zero electromotive force induced in them by an external magnetic fieldchoke, choke coil, choking coil a coil of low resistance and high inductance used in electrical circuits to pass direct current and attenuate alternating currentfield coil, field winding the electric coil around a field magnet that produces the magneto motive force to set up the flux in an electric machineinduction coil a coil for producing a high voltage from a low-voltage sourceprimary, primary coil, primary winding coil forming the part of an electrical circuit such that changing current in it induces a current in a neighboring circuithead, read/write head (computer science) a tiny electromagnetic coil and metal pole used to write and read magnetic patterns on a disksecondary, secondary coil, secondary winding coil such that current is induced in it by passing a current through the primary coilsolenoid a coil of wire around an iron core; becomes a magnet when current passes through the coiltickler coil a small coil in series with the anode of a vacuum tube and coupled to the grid to provide feedback electrical device a device that produces or is powered by electricity | 
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