designating a screen of a cathode ray tube on which a spot remains luminous for a relatively long period after the electron beam has moved elsewhere.
单词 | θ214483 |
释义 | society > occupation and work > equipment > machine > parts of machines > other parts > [adjective] > type of screen (1) long-persistence1934 designating a screen of a cathode ray tube on which a spot remains luminous for a relatively long period after the electron beam has moved elsewhere. |
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