A photocell in the form of a vacuum tube or gas-filled tube with a photoemissive cathode and an anode.
| 单词 | θ77487 |
| 释义 | the world > matter > physics > electromagnetic radiation > electricity > voltage > photovoltaics > [noun] > photocell > specific types of cells (2) phototube1930 A photocell in the form of a vacuum tube or gas-filled tube with a photoemissive cathode and an anode. caesium cell1931 One of the elementary bodies; a rare alkali-metal discovered by spectrum-analysis in 1860–61 by Bunsen and Kirchhoff; so called from two… |
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