Using acoustic equation, the paper conducts spline interpolation for step surface data and results in quadrilateral grid partition coincident with relief surface.

本文利用声波方程，对阶梯状地表数据进行样条插值处理，得到了与起伏地表比较吻合的四边形网格剖分。

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Using step surface data for wave equation simulation of seismic data can produce serious interference at corner points of steps and further affect the results of numeric simulation.

利用阶梯状地表数据对地震记录进行波动方程模拟时，在阶梯的角点处会产生严重的干扰，进而影响数值模拟结果。

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The upright orientation is also the first step in surface detachment for bacteria.

这种直立的方位也是细菌脱离组织表面的第一步。

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In making the move from the Surface RT to the Surface Pro, we step up from 1, 366 x 768 resolution to 1080p.

ENGADGET: Microsoft Surface Pro hands-on Hands-on

The next astronauts to step out onto the dusty gray surface of the moon will be wearing a suit that's very different from the bulky white armor worn by the Apollo explorers.

NPR: NASA's Future Spacesuits Are Made for Walking

Making a faux marble surface is a four-step process.

WSJ: An Artisan Who Can Turn Paint into Stone | Creating