| 单词 | micrometer wheel |
| 释义 | > as lemmasmicrometer wheel micrometer wheel n. ΚΠ 1862 Internat. Exhib.: Illustr. Catal. Industr. Dept. II. xi. §2612 The tangent back sight is elevated by a rack and pinion, the latter having a micrometer wheel for finer readings. 1895 Amer. Naturalist 29 194 Make transverse sections of it, taking about four to six divisions of the micrometer wheel to each section. < as lemmas |
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