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| 单级泵 | |||
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| 单级泵 | |||
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| 单级泵具有一个叶轮 | |||
| 单级泵 | |||
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single -stage pump : 14 phrases in 6 subjects |
| Ecology | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 4 |
| Metallurgy | 1 |
| Refrigeration | 1 |
| Technology | 6 |
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