| 单词 | micrometer balance |
| 释义 | > as lemmasmicrometer balance micrometer balance n. rare a balance for measuring small weights (originally of coins) to a high degree of accuracy. ΚΠ 1875 E. H. Knight Amer. Mech. Dict. II. 1431/2 Kenshaw's micrometer-balance, invented about 1842, consists of a beam or steelyard supported on a knife-edged fulcrum. 1920 Proc. Royal Soc. 1919–20 B. 91 122 The amount of blood collected weighed about 120 mgrm. to 130 mgrm., and the weighings were done by a specially constructed micrometer balance. < as lemmas |
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