According to the features of shaft kiln burning, a mathematical model is established and a quadratic regression equation for calculation of proper burning range of road cement clinker is presented.

根据立窑煅烧的特点，建立立窑煅烧数学模型并且提出适宜计算道路水泥熟料烧成范围的二次回归方程。

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In this method, the effect of most real environment factors is considered with parabolic equation. Finally, the method of building and rendering 3d model of radar maximum detection range is given.

该方法综合考虑真实环境因素的影响，采用了抛物方程方法，最后给出了雷达最大探测范围三维模型的建立和表现方法。

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By using of the 5-level primitive equation model, the short range evolution of the subtropical ridge and the subtropical high structure for 23-26 June 1980 was experimented.

本文利用5层原始方程模式对1980年6月23—26日梅雨期暴雨期间副高位置的短期演变、副高结构的短期变化作了一次数值预报试验。

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