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| характеризующийся твёрдостью по Викерсу (nickel plating can have Vickers hardness readings up to one thousand, but inferior wear resistance to hard anodising with a Vickers number of less than 500 Alexander Demidov) | |||
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with a Vickers number : 2 短语, 1 学科 |
| 一般 | 2 |