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浮充 充气 : 40 phrases in 9 subjects |
| Aviation | 1 |
| Earth sciences | 2 |
| General | 2 |
| Mechanic engineering | 1 |
| Mineral processing | 1 |
| Navigation | 1 |
| Oil / petroleum | 2 |
| Technology | 29 |
| Textile industry | 1 |
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