The existing empirical correlation based on straight duct can not predict well the length of shock train in bend duct due to their distinct difference in shock train length.

另外，鉴于弯曲管道与直管道内激波串长度之间的明显差异，已有的基于直管道的激波串长度经验公式不能很好地适用于弯曲管道。

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Barbara Buono, the presumed Democratic nominee for governor, shook hands and distributed campaign buttons along the length of the train.

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At length, the train begins to pass clusters of houses, building up gradually into the centre of Bergen, where it comes to rest under the vast cylindrical glass roof of the main railway station.

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The train is nearly nine feet in length.

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