“picture-tube brightener”的概念、定义、翻译、参考文献-科学参考

单词	picture-tube brightener
释义	picture-tube brightener [`pik·chǝr ´tüb ´brīt·ǝn·ǝr] ^ELECTRONICS A small step-up transformer that can be inserted between the socket and base of a picture tube to increase the heater voltage and thereby increase picture brightness to compensate for normal aging of the tubes.
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