orthicon
英：[\'ɔ:θɪkɒn]
美：[\'ɔθɪˌkɒn]
基本释义
- n.
- 正析，（摄）像管
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英英释义
Noun1. a now obsolete picture pickup tube in a television camera; electrons emitted from a photoemissive surface in proportion to the intensity of the incident light are focused onto the target causing secondary emission of electrons
