| 单词 | entrance pupil |
| 释义 | entrance pupilnoun Optics.the image of the aperture viewed from the objective of an optical system limiting the rays that enter the system. Compare exit pupil. Words nearby entrance pupilentr'acte, entrails, entrain, entrammel, entrance, entrance pupil, entranceway, entrancing, entrant, entrap, entrapment Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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