"Writing in C or C++ is like running a chain saw with all the safety guards removed. " - Bob Gray. Author.
用C 或C++ 写代码，就好像在没有保护设施的链锯上奔跑。—— 鲍勃·格雷（作家）
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。
Because of the strong sun, Mrs. William's new dining room curtains _____ from dark blue to gray within a year. A. faded B. fainted C. paled D.
diminished 因为强烈的阳光，威廉姆女士的新的餐厅的窗帘在一年以内从深蓝------变成灰色…
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