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| 装管工具 | |||
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| 管加工工具; 修管工具; 装管工具 | |||
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pipe tools : 21 phrases in 7 subjects |
| Automobiles | 2 |
| Drilling | 5 |
| Electronics | 2 |
| General | 1 |
| Geophysics | 1 |
| Oil / petroleum | 4 |
| Technology | 6 |
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