| 单词 | photographic plate |
| 释义 | photographic plate The other part illuminates the object, which reflects it back on to the photographic plate. Times, Sunday Times A photographic plate held up to it would be darkened, even though it was not exposed to light. Retrieved from Wikipedia CC BY-SA 3.0 Later photographic methods would use starlight to make a representation on a photographic plate. Retrieved from Wikipedia CC BY-SA 3.0 The movement in the filament was heavily magnified and projected through a thin slot onto a moving photographic plate. Retrieved from Wikipedia CC BY-SA 3.0 From 16,000 feet a photographic plate could cover some 2 miles by 3 miles of front line in sharp detail. Retrieved from Wikipedia CC BY-SA 3.0 |
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