| 单词 | hardness scale |
| 释义 | > as lemmashardness scale General attributive (chiefly in sense 1), as hardness measurement, hardness scale, hardness test, hardness tester. ΚΠ 1861 B. Silliman Rep. Water Supply Hartford 14 I believe it will be interesting to cite these analyses,..especially as some of them are used as terms of comparison for the hardness test under the next head. 1908 Jrnl. Iron & Steel Inst. 78 639 Maurer also gives an account of his investigations on the Shore hardness test. 1930 Engineering 19 Sept. 358/1 Rockwell hardness measurements and X-ray diffraction patterns had shown that lattice distortion could be accompanied by appreciable softening. 1951 D. Tabor Hardness of Metals i. 2 The Mohs hardness scale has been widely used by mineralogists and lapidaries. 2005 All Terrain Boarding Mag. May 72/2 There are a range of hardness tests including the Rockwell, Brinnell Koop and Vickers tests. < as lemmas |
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