But some of those precious minutes would be saved by making fewer stops, while train frequency on the traditional west-coast main line will be cut.

但是，这几分钟的宝贵时间将通过减少停靠站的方式节省下来，而传统的西海岸主干线的列车班次会减少。

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To improve the range resolution of Mono-Pulse Train (MPT), the linear step frequency signal is introduced and used widely in modern radars.

为了提高脉冲串信号的距离分辨力，曾有文献提出了对子脉冲的载频进行线性递增的方法。

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The new methods can be used in both detection of FMCW echo and frequency estimation of correlative pulse train.

这两种方法既可用于多段线性调频连续波探测回波的积累检测，也可用于多个相参脉冲信号的积累与频率估计。

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"Services between London and Swansea currently operate at a frequency of only one train an hour off-peak, " he added.

BBC: Swansea rail electrification plea from city leader

But Switzerland's train system is second only to Japan's for its comprehensiveness and frequency of use by locals.

BBC: Switzerland by public transport