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31. | volume of goods flo |
| 货流量 |
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32. | flow control device |
| 流量控制器 |
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33. | flow of freight |
| 货运流量 |
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34. | annual discharge |
| 年流量 |
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35. | flowrate optimizatio |
| 最佳流量 |
|
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36. | peripheral flow-rate |
| 周缘流量 |
|
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37. | constant-rate of flow |
| 恒定流量 |
|
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38. | water draw rate |
| 取水流量 |
|
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39. | passenger throughput |
| 旅客流量 |
|
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40. | sandface flowrate |
| 井底流量 |
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