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| 1. | Bierbaum scratch hardness equipment |
| 比尔鲍姆刮刻硬度仪 |
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| 2. | scratch hardness tester |
| 刮痕硬度试验仪 |
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| 3. | Bierbaum scratch hardness |
| 比尔巴姆刮痕硬度 |
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| 4. | scratch hardness |
| 抗刮硬度 |
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| 5. | Martens scratch hardness |
| 马氏划痕硬度 |
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| 6. | scratch hardness number |
| 划痕硬度值 |
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| 7. | scratch hardness test |
| 划痕硬度试验 |
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| 8. | Bierbaum scratch hardness test |
| 比尔鲍姆划痕硬度试验 |
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