Secondly, the model establishment of demand collection and demand prediction.

第二，需求信息采集及预测模型的构建。

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This collection option stops tracing on demand; all processes suspend tracing, but the contents of the trace buffer are preserved so that they can be dumped later.

这是一个收集选项，它根据需要停止跟踪。这时，所有进程都挂起跟踪，但跟踪缓冲区的内容被保存起来，以便以后转储到文件中。

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At the same time, demand has soared thanks to growing ranks of the mega-rich, for whom a collection of fine wine can be the ultimate status symbol.

与此同时，葡萄酒需求的上涨得益于富豪的不断增多，对于他们来说，收藏美酒是身份地位的象征。

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The new U-verse Screen Pack, together with U-verse On Demand, offers customers an extensive collection of new release hit movies, classic movies, TV programs and premium programs for free, via subscription or a la carte.

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