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| 系统孤岛 | |||
| system island: 21 phrases in 11 subjects |
| Drilling | 1 |
| Earth sciences | 3 |
| Ecology | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 1 |
| Life sciences | 1 |
| Navigation | 1 |
| Nuclear and fusion power | 6 |
| Oil / petroleum | 3 |
| Solar power | 1 |
| Technology | 2 |
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