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| 薄管 | |||
| 薄壁管 | |||
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thin tube : 21 phrases in 10 subjects |
| Bridge construction | 2 |
| Chemistry | 1 |
| Electronics | 1 |
| Engineering geology | 3 |
| General | 1 |
| Metallurgy | 1 |
| Nuclear physics | 1 |
| Oil / petroleum | 1 |
| Technology | 9 |
| Telecommunications | 1 |
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