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| seismic spectrum; earthquake spectrum | |||
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| seismic spectrum | |||
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地震谱 : 21 phrases in 10 subjects |
| Bridge construction | 2 |
| Earth sciences | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| General | 1 |
| Geophysics | 1 |
| Hydroelectric power stations | 4 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 7 |
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