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| 系统性原则 | |||
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system principle : 21 phrases in 8 subjects |
| Bodybuilding | 3 |
| China | 4 |
| General | 2 |
| Hydroelectric power stations | 8 |
| Rail transport | 1 |
| Space | 1 |
| Technology | 1 |
| Telecommunications | 1 |
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