单词 | oil-immersion |
释义 | > as lemmasoil-immersion oil-immersion adj. (attributive) (of a lens or microscope) having a layer of oil between the objective and the specimen so as to increase the numerical aperture. ΚΠ 1878 Nature 16 May 65/1 (heading) The new ‘oil immersion’ object-glass construction by Carl Zeiss. 1964 M. Hynes Med. Bacteriol. (ed. 8) xiv. 232 Growth may be obvious under the oil-immersion lens within 24 hours. 1984 D. A. Roberts & C. W. Boothroyd Fund. Plant Pathol. (ed. 2) 389 When bacteria or fine structures of nematodes are to be viewed, an oil-immersion objective..is used. < as lemmas |
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