When the relative gap height (the ratio of flap height to gap width) is in the range of 0 8-2 0, the mean pressure will reduced 30% if the flap height is smaller than the thickness of boundary layer.

底部相对间隙在0 8～ 2 0之间时，扰流片高度小于边界层厚度时的壁面平均压力比扰流片高度大于边界层厚度时小30 %左右。

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According to the relation of the height of atmosphric boundary layer and sensible flux , it is attained that the sensible flux is about 30% of the solar radiation received by the ground.

根据边界层高度和感热通量的关系，可知感热通量约占地面接收到的太阳直接辐射的30 % 。

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The height and the excess phase variations of the occultation caused by water vapor and the temperature variety in the atmosphere boundary layer are studied in details.

详细研究了大气边界层水汽和温度变化对掩星观测高度、相位时延的影响；

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