The window contrast method is a means of extracting geological body data of middle and deep beds in treatment of regional gravity data.

窗口差法是区域重力资料处理中，提取中深部地质体信息的一种手段。

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Sampling is accomplished by calculating the centre of gravity of the line segment in the tracking window, which is moved in order to track the curve.

采样通过移动采样窗口跟踪曲线，在采样窗口内求线段的重心来实现。

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After that passes, after a couple of days, for me it was kind of a sense of wonder as you explore what you can do in zero gravity and the things that you can see out the window and just how the entire complex works together to make it happen.

WHITEHOUSE: President Obama's call to the International Space Station