单词 | laser camera |
释义 | laser camera [`lā·zǝr ´kam·rǝ] OPTICS An airborne camera system for night photography in which a laser beam is split into two beams; one beam, which is almost invisible, scans the ground, while the second beam is modulated by a detector of light reflected from the ground area being scanned, and is in turn swept back and forth over a moving film by the same scanner. |
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