| 单词 | micrometer microscope |
| 释义 | > as lemmasmicrometer microscope micrometer microscope n. (a) a microscope fitted with a micrometer; (b) an apparatus for reading and subdividing the divisions of large astronomical instruments. ΚΠ 1785 Philos. Trans. (Royal Soc.) 75 463 The right-hand or micrometer microscope, so distinguished because it has a micrometer attached to it. 1849 R. V. Dixon Treat. Heat i. 25 The microscope e′ was hence called the micrometer microscope. 1906 W. Hallock & H. T. Wade Outl. Evol. of Weights & Measures x. 223 The line standard, of course, can be used with a microscope with cross-hairs, or a micrometer microscope, much more readily than an end standard. 1953 K. J. Hume & G. H. Sharp Pract. Metrol. (1965) ii. xxix. 141 There are two types of auto-collimator in general use; one of low sensitivity, with an accuracy of reading of about 0.2 min, and the others incorporating a micrometer microscope reading to a fraction of a second. < as lemmas |
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