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| 正常流量; 正常水流 | |||
| 正向流动; 正常径流量; 常规流 | |||
| 常规数据流 | |||
| normal flow: 24 phrases in 7 subjects |
| Bridge construction | 2 |
| Desert science | 1 |
| Ecology | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 4 |
| Technology | 14 |
| Telecommunications | 1 |
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