| 单词 | scratch hardness |
| 释义 | scratch hardnessnounresistance of a material, as a stone or metal, to scratching by one of several other materials, the known hardnesses of which are assembled into a standard scale, as the Mohs' scale of minerals. Origin of scratch hardnessFirst recorded in 1925–30 Words nearby scratch hardnessscratch card, scratch coat, scratcher, scratches, scratch file, scratch hardness, scratch hit, scratchie, scratching, scratching post, scratch line Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 |
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