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| weak line | |||
| line of weakness | |||
| 弱线: 30 phrases in 14 subjects |
| Agriculture | 1 |
| Aviation | 2 |
| Ecology | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Football | 1 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Nautical | 1 |
| Oil / petroleum | 2 |
| Space | 3 |
| Sports | 1 |
| Technology | 11 |
| Textile industry | 3 |
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