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| |||
| 焊缝根部面 | |||
| 焊缝根部面积 | |||
| 钝边面积 | |||
| 钝边 (焊接) | |||
| 焊缝坡口钝边; 坡口钝边; 焊根面积 | |||
| 焊缝根部面; 齿根面; 钝边 | |||
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root face : 13 phrases in 4 subjects |
| Metallurgy | 2 |
| Oil / petroleum | 2 |
| Plastics | 2 |
| Technology | 7 |
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