BP network model and BP algorithm are also researched and BP algorithm is improved by adding the momentum item and self-adapting the length of train step.

研究了BP网络模型和BP算法，并对BP算法进行了加入动量项和自适应调节步长的改进。

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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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Historically, defeating an insurgency has taken eight, nine, 10, 11, 12 years, about the same length of time you suggested it takes to train actually a senior sergeant.

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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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