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| sponge construction | |||
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| cancellation (cancellatio) | |||
| 海绵结构: 14 phrases in 9 subjects |
| Agriculture | 1 |
| Cryptography | 2 |
| Engineering geology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Soil science | 1 |
| Technology | 5 |
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