单词 | hologram |
释义 | Word Frequency hologram(ˈhɒləˌɡræm) noun a photographic record produced by illuminating the object with coherent light (as from a laser) and, without using lenses, exposing a film to light reflected from this object and to a direct beam of coherent light. When interference patterns on the film are illuminated by the coherent light a three-dimensional image is produced |
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