This image, like many Hubble images, has a curious stair-step shape.

这幅图像如同很多其他哈勃图像，具有奇异的阶梯状外形。

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Therefore, following processing steps are adopted: stair image preprocessing, stair edges detection, step edges extraction.

为此，采用了以下的处理流程：阶梯图像预处理、阶梯边缘检测、台阶边沿提取。

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Then she heard his step on the stair away down on the first flight, and she turned white for just a moment.

不久她听到了他来自楼下的第一个脚步声，她的脸刷地一下变得苍白。

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From the start of the year, AONE has made lower highs and lower lows in a very systematic, stair step manner.

FORBES: Watching AONE For A Bottom

In recent months, Honda dealers say the company has turned to controversial "stair-step" incentives to capture more price-sensitive buyers.

WSJ: Honda Pins Revival on U.S. Auto Sales

The market continues to methodically stair-step higher, holding key levels when it has to in order to maintain bullish composure.

FORBES: Big Earnings Coming From Google, Apple, IBM, ISRG