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| self-reversal | |||
| 自 反向: 23 phrases in 10 subjects |
| Chemistry | 1 |
| Earth sciences | 1 |
| Electric machinery | 1 |
| Electronics | 2 |
| General | 3 |
| Metallurgy | 3 |
| Oil / petroleum | 2 |
| Polymers | 2 |
| Space | 2 |
| Technology | 6 |
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