In this paper, based on CPM method, a regulating and calculating method of pressure is given on a branch junction head in the mine ventilation network in accordance with graphic theory.

本文以关键线路法为基础，根据图论理论，给出一种支路节点压力通风网络调节计算方法。

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With CPM, estimates of activity durations are based on historical data and are assumed to be the mean or average time that the activity has taken to perform in the past.

CPM的活动历时估算通常以历史数据为基础，并且采用以往项目活动历时的平均值。

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Feedburber already has its own publisher network, and you can sign-up to start displaying CPM based advertising on your feed footer.

Feedburber已经拥有了自己的发布网络，你可以登录开始显示饲料页脚cpm的广告。

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Data from the New York-based consultancy CPM Group also shows gold-mining output rising, with some 66 million ounces in 2009, followed by 68 million in 2010.

FORBES: Global Output From Gold Mines In Upswing Although Some Constraints Persist

At the same time, the shift from PC-based display ads to mobile audio ads is driving down the blended CPM.

FORBES: Connect