为了精确地估算产业部门不同类别与特征的大气污染源对指定区域的污染强度，采用暴露效率概念及其研究方法。
The concept and method of exposure efficiency are used to precisely estimate the pollution intensity at a specific region resulted by various air pollution sources of industrial sectors.
为实现在月球表面指定区域的精确软着陆，研究了月球软着陆的线性二次型最优制导方法。
To achieve the soft landing on a specified region of lunar surface, the paper studies a linear quadratic optimal guidance method for lunar soft landing.
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