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单词 emitter
释义

emittern.

/ɪˈmɪtə/
Etymology: < emit v. + -er suffix1.
1. That which emits. Const. of.
ΘΚΠ
the world > movement > motion in a certain direction > going or coming out > letting or sending out > [noun] > emission > that which emits
emitter1883
1883 J. Tyndall Radiation in Contemp. Rev. Grasses were powerful emitters of heat.
1926 Spectator 17 Apr. 696/1 Tungsten a powerful emitter of ultra-violet rays, when it is incandescent.
1927 A. Huxley Proper Stud. 72 No emitter of singular opinions is ever reasonable in the eyes of the..majority.
2. An electrode which emits current-carriers; an element in a transistor. Also attributive and in other combinations, as emitter-base, emitter-follower, emitter-junction, emitter-resistance.
ΚΠ
1948 Physical Rev. 74 230/1 Two [electrodes], called the emitter and collector, are of the point-contact rectifier type.
1957 Electronic Engin. 29 3 The emitter resistance is inversely proportional to the emitter current.
1958 Electronic Engin. 30 200 The linear emitter-follower is characterized by a low impedance emitter output terminal, whose voltage approximates that of its base.
1962 J. H. Simpson & R. S. Richards Physical Princ. Junction Transistors ii. 25 The material from which these injected carriers come..is called the emitter and the junction between it and the base is called the emitter junction.
1962 J. H. Simpson & R. S. Richards Physical Princ. Junction Transistors ix. 202 Because the emitter-base junction is a high-efficiency hole injector, very few electrons are removed via the emitter.
This entry has not yet been fully updated (first published 1891; most recently modified version published online September 2018).
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n.1883
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