晶体管：用于放大、控制和生产电信号的半导体器件，是贝尔电话实验室的三位美国物理学家巴丁、布喇顿和肖克莱于1947年所发明；
Transistor: Solid-state semiconductor device for amplifying, controlling, and generating electrical signals. Invented at Bell Labs (1947) by John Bardeen, Walter H. Brattain, and William B.
这种装置在音频的间息振荡范围内连续可调，信号经半导体三极管放大后用喇叭播放出来。
The device can be adjusted continuously in an audio inter break oscillation range, and a signal is sent out by a loudspeaker through being magnified by a semiconductor triode.
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