In the mineral table of hardness, it has a rating of 8, which means that a knife cannot cut it, and that topaz will scratch quartz.

在矿石硬度表上，它的硬度为8，这表明刀子不能割开它而它可在石英上划痕。

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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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The non-scratch touch surface is made of reinforced glass with a hardness of 5.5 Mohs, to ensure it has the durability to withstand use in schools, hospitals, and public access areas.

ENGADGET: Eizo rolls out 17-inch FlexScan T1751 multitouch monitor