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单词
bierbaum scratch hardness test
释义
Bierbaum scratch hardness test
Bierbaum scratch hardness test
[
′bir‚bau̇m ¦skrach ′härd·nəs ‚test
]
(engineering)
A test for the hardness of a solid sample by microscopic measurement of the width of scratch made by a diamond point under preset pressure.
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c-c ckr-10
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c-c ckr-2
cc-ckr-2
c-c ckr-3
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c-c ckr-4
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c-c ckr-5
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c-c ckr-6
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c-c ckr-7
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c-c ckr-8
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更新时间：2025/11/30 8:44:09