单词 | photographic plate |
释义 | photographic plate (once / 23830 pages) n WORD FAMILY photographic plate: photographic plates USAGE EXAMPLESThere are half a million photographic plates in the Harvard College Observatory collection, all unique. Nature(Nov 22, 2016) When Clyde Tombaugh spotted Pluto's faint moving dot in a set of photographic plates in 1930 it was big news. Scientific American(Jul 15, 2015) The astronomer Clyde Tombaugh discovered Pluto in 1930, spying it as a small dot moving against background stars in a series of photographic plates. Scientific American(Jul 14, 2015) n a flat sheet of metal or glass on which a photographic image can be recorded Syn|Hypo|Hyper plate quarter plate a photographic plate measuring 3.25 inches by 4.25 inches flat solid, sheet a flat artifact that is thin relative to its length and width |
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