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| 水封 | |||
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water packing : 30 phrases in 12 subjects |
| Agriculture | 1 |
| Automobiles | 1 |
| Aviation | 4 |
| Compressors | 4 |
| Drilling | 3 |
| Economy | 2 |
| Engineering geology | 1 |
| General | 1 |
| Mining | 1 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 9 |
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