并且为了提供更多的数据参考，本文采用各地区平均积雪密度和新雪密度分别计算出地面雪压和屋面雪压。
And snow pressures on the ground and the coverings of greenhouses are calculated by mean density of snow in an area and new density of snow respectively.
白色瓦片的密度在攀岩塔的顶部是最大的，象征着雪，而灰色和棕色的瓦片环绕在底部。
The density of white shingles is greatest towards the top of the climbing tower, suggestive of snow, while grey and brown shingles surround the base.
本文在切比雪夫分布和泰勒分布的基础上，提出了一种新的振幅分布即正态分布，并利用正态分布密度函数来设计阵列天线。
Based on Tchebycheff distribution and Taylor distribution, this paper presents a new amplitude distribution-normal distribution, the density function of which is used to design an antenna array.
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