... Brinell hardness 布氏硬度 Brinell hardness number 布氏硬度值 Brinell hardness number 布氏硬度值布氏硬度数布式硬度数 ...
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... hardness number 硬度数 ; Brinell hardness number 布氏硬度数 ; 勃式硬度数 ; 勃氏硬度数 hardness number conversion 硬度数变换 ...
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... hardness number 硬度数 ; Brinell hardness number 布氏硬度数 ; 勃式硬度数 ; 勃氏硬度数 hardness number conversion 硬度数变换 ...
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N a measure of the hardness of a material obtained by pressing a hard steel ball into its surface; it is expressed as the ratio of the load on the ball in kilograms to the area of the depression made by the ball in square millimetres 勃氏硬度数
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