| 单词 | parfocal |
| 释义 | parfocal[ pahr-foh-kuhl ] / pɑrˈfoʊ kəl / adjective Optics.of or relating to different eyepieces (of telescopes or microscopes) that all focus their images in the same plane, so that they can be interchanged without readjusting the instrument. Origin of parfocalFirst recorded in 1885–90; par1 + focal Words nearby parfocalparev, pareve, par excellence, parfait, parfleche, parfocal, par for the course, parfum, pargasite, parget, pargeting Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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