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| 平衡控制调节 | |||
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balance control : 10 phrases in 9 subjects |
| Aviation | 1 |
| Business | 1 |
| Ecology | 1 |
| Finances | 1 |
| General | 2 |
| Geophysics | 1 |
| Securities | 1 |
| Technology | 1 |
| Telecommunications | 1 |
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