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| 极限强度 | |||
| limit strength: 24 phrases in 10 subjects |
| Aviation | 1 |
| Bridge construction | 4 |
| Business | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Geophysics | 1 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Space | 1 |
| Technology | 12 |
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