通过理论论证和大量的实践经验，总结出在化纤生产线中变频器在不同应用场合下的容量选定公式。

Through theoretical proof and practical experience, the capacity selection formula applied on different situation in synthetic fiber production line were summarized.

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此举目的可用一个（已验证的）理论证明，即真正合并的航空公司通过中心所在提供更低价的机票。

The pursuit of this is justified by a (contested) theory that virtually merged airlines offer lower fares on flights through their hubs.

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最后，本文还通过理论分析丛实例演示论证了在这个估计类中，各种回归系数估计有着和其他工作者所得到的相容的结论。

Finally, through the theory analysis and the example demonstration, we prove from this estimate class that we get the results which are interlinked with the results attained by other statisticians.

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