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| 管道［水头］损失 | |||
| 缩孔损失 | |||
| 管道压损; 管道热损; 管道损失; 管道水头损失 | |||
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pipe loss : 18 phrases in 4 subjects |
| Earth sciences | 2 |
| Hydroelectric power stations | 1 |
| Refrigeration | 2 |
| Technology | 13 |
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