单词 | Brinell test |
释义 | Brinell test [brǝ`nel ´test] ENGINEERING A test to determine the hardness of a material, in which a steel ball 1 centimeter in diameter is pressed into the material with a standard force (usually 3000 kilograms); the spherical surface area of indentation is measured and divided into the load; the results are expressed as Brinell number. |
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