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| self-feed back | |||
| self feedback | |||
| self-feedback | |||
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| self-feedback | |||
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| self-feedback | |||
| 自 反馈: 28 phrases in 14 subjects |
| Agriculture | 1 |
| Air defense | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Communications | 1 |
| Economy | 1 |
| Electronics | 5 |
| General | 1 |
| Information technology | 1 |
| Mathematics | 1 |
| Metallurgy | 2 |
| Oil / petroleum | 1 |
| Space | 3 |
| Technology | 8 |
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