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| K 形坡口 | |||
| K形坡口; 双斜凹缝; 双斜槽缝 | |||
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| 双斜坡口; K 型坡口 | |||
| K 形坡口 | |||
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double-bevel groove : 8 phrases in 3 subjects |
| Metallurgy | 2 |
| Plastics | 2 |
| Technology | 4 |
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