| 单词 | 象管 |
| 释义 | 〔orthicon〕A television camera pickup tube, more sensitive than the iconoscope, that uses a low-velocity electron beam to scan a photoactive mosaic. Also called image orthicon 正析（摄）象管：一种运用低带电子来扫描感光栅格的电视摄象管，比光电摄象管更敏感 也作 image orthicon |
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