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| 正常场校正; 正常校正 | |||
| 正常改正 | |||
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normal correction : 8 phrases in 6 subjects |
| Aviation | 1 |
| Drilling | 1 |
| Hydroelectric power stations | 1 |
| Oil / petroleum | 3 |
| Space | 1 |
| Technology | 1 |
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