The relationship among the duration the area and the depth of the hard rain is a important research subject in hydrometeorology.
暴雨的历时、面积和深度的关系(时、面、深)是水文气象学的重要研究课题之一。
2
The formation water in L area, M Basin is fresh. The natures of drilling mud vary with different drilling depth. There is a complicated relationship between electric properties of water and oil.