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单词 parfocalize
释义 parfocalize, v.|pɑːˈfəʊkəlaɪz|
[f. prec. + -ize.]
trans. To make parfocal. So parˌfocaliˈzation, the action or result of parfocalization.
1944C. P. Shillaber Photomicrography iii. 234 As a rule parfocalization can be attained for all microscope objectives except those of great focal length.1958G. H. Needham Pract. Use Microscope xv. 234/2 On the modern, routine stands these three or four objectives are parfocalized on the revolving nosepiece so that after focusing with the low dry, the high dry may be swung into position without racking the body tube up.1965J. R. Benford in R. Kingslake Appl. Optics & Optical Engin. III. iv. 165 The second adjustment is to parfocalize the objective.
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