This means the seasonal variation of the aerosol spectral optical depth is mainly determined by the variation of surfacevisibility.
而不分级的光学厚度季节起伏主要由各季节的几率能见度决定。
2
To define the visibility of the edges, you can apply a Edit Mesh modifier to the object, change to the edge sub-object level and use the Surface Properties tools.
要定义边缘的可见性，您能运用编辑滤网修饰词于对象，变成边缘次级对象水平并且使用表面物产工具。
3
A thick cloud of water droplets suspended in the atmosphere at or near the earth's surface that obscures or restricts visibility (strictly, reducing visibility to below 1 km).