The spread range gets smaller because of threshold pressure gradient, and there will be a additional pressure drop in the bottom of the well because of the skin damage.

启动压力梯度使压力波传播范围变小，井底污染会造成一个附加压力降。

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The model was proven effective and feasible. The motion trail and spread range of oil spill in different wind conditions were calculated and analyzed based on the oil spill model.

依据所建立的溢油模型，对栾家口港区附近海域在不同风况条件下溢油运动轨迹及扩展范围进行了计算。

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Measuring the dispersion: the dispersion gives us a measure of the range, or spread of data within a given dataset.

度量分散情况：分散情况向我们提供了范围，或者给定数据集内数据扩散情况的度量手段。

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Their names vary from state to state or community to community and the tools that exist online are spread across a range of disconnected websites.

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Similarly, America's renewed interest in missile defences is a response to the spread of longer-range missile technology, done chiefly by China, Russia and North Korea.

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By recognising and thus publicising individual sites, UNESCO and other cultural watchdogs risk harming the cause of conservation, which would be better served if visitors to the country were spread around a broader range of places.

ECONOMIST: UNESCO is better at naming enemies than finding friends