| 单词 | projection plan position indicator |
| 释义 | projection plan position indicator [prǝ`jek·shǝn `plan pǝ`zish·ǝn `in·dǝ´kād·ǝr] ELECTRONICS Unit in which the image of a 4-inch (10-centimeter) dark-trace cathode-ray tube is projected on a 24- inch (61-centimeter) horizontal plotting surface; the echoes appear as magenta- colored arcs on white background. |
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