After median filtering, image mode transforming, and "bad area" filtrating to images of soil layer, the authors extract the characteristic parameter of a image, that is gray-value, and c.

通过土壤表层图像的中值滤波、图像模式转换和“坏区”过滤，提取图像的特征参数——灰度值，并对土壤表层图像的灰度值与其含水率的关系进行了试验研究。

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Things went from bad to worse in March 2015 after heavy rains damaged the only power cables in the area.

2015年3月，暴雨破坏了该地区唯一的电缆后，情况变得更加糟糕。

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Nicaraguan naval authorities had banned sea travel in the area because of bad weather and strong winds, but the tour boat proceeded anyway.

由于恶劣的天气和强风，尼加拉瓜海军当局已经禁止在该地区进行海上旅行，但这艘游船仍继续出游。

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"The majority of people that live here in the coastal area got hit bad.

VOA: standard.2009.10.06

And while we have not experienced too many difficulties in relocating people to the area, the challenge we often have is in having a bad perception about the area.

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But he has been criticised for giving the area a bad name.

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The reason is that there will be no shipping around the area due to bad weather.

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