| 单词 | immersion lens |
| 释义 | > as lemmasimmersion lens immersion lens n. ΚΠ 1875 E. H. Knight Pract. Dict. Mech. Immersion-lens, an achromatic objective for the microscope, which is used with a drop of water between the front lens and the glass cover of the object examined, to prevent the extreme refraction of the luminous pencils if air is present. < as lemmas |
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