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| 切线法 | |||
| 正切法 | |||
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tangent method : 16 phrases in 8 subjects |
| Artificial intelligence | 1 |
| Aviation | 1 |
| Bridge construction | 2 |
| Chemistry | 1 |
| General | 1 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 6 |
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