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| 布氏球印硬度 | |||
| 布氏〔球测〕硬度 | |||
| 布氏硬度 | |||
| 布氏钢球压入硬度; 球印硬度 | |||
| 钢球硬度; 布氏球测硬度; 布氏球印硬度 | |||
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| 球压硬度布氏硬度 | |||
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| 布氏硬度值 | |||
| ball hardness: 18 phrases in 6 subjects |
| Architecture | 2 |
| Electronics | 1 |
| Metallurgy | 4 |
| Plastics | 1 |
| Steel production | 1 |
| Technology | 9 |
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