| 单词 |
apertometer |
| 释义 |
apertometer
apertometer[‚a·pər′täm·əd·ər] (optics) An instrument designed to measure the numerical aperture of microscope objectives. apertometer
ap·er·tom·e·ter (ap'er-tom'ĕ-ter), Instrument for measuring the angular aperture of a microscope objective. |
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