... 硬木；坚材 hard wood 硬度数 hardness number 硬度试验机；硬度试验器；硬度试验计 hardness tester ...
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维氏硬度数 Vickers diamond hardness number ; Vickers hardness number
布氏硬度数 Brinell hardness number
勃式硬度数 Brinell hardness number
威氏硬度数 diamond pyramid number
努普硬度数 Knoop Hardness Number
洛氏硬度数 Rockwell hardness number
钢球硬度数 ball hardness number
金刚石角锥体硬度数 diamond pyramid number
勃氏硬度数 Brinell hardness number ; HB
利用等温回火实验，采集了淬火钢在不同条件下回火时的硬度数据。
The hardness data of quenched steel under different conditions were collected utilizing austempering tests.
本文将市区的浅层地下水硬度作为灰色量，用已有的硬度数据建立GM(1,1)灰色模型，预测其未来的变化趋势。
In this paper, the hardness of the shallow groundwater was treated as a grey variable and the GM (1, 1) grey model was created to predict the future trend of the change in hardness.
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