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| регулирование подаваемого и потребляемого потока (泵、马达) | |||
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变量控制 : 24 phrases in 8 subjects |
| Computers | 2 |
| Electronics | 4 |
| General | 5 |
| Information technology | 1 |
| International Monetary Fund | 3 |
| Mathematics | 1 |
| Medical | 1 |
| Technology | 7 |
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