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Aggregate hardness can be measured using the Mohs hardness Scratch Test.
总计硬度可利用层数硬度划痕测试。
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The scratch resistance of tinplate was measured by using modified QHQ type pencil hardness test apparatus which is designed for organic paint coating.
移植QH Q型涂膜铅笔划痕硬度仪用来测试电镀锡板的抗划伤性。
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