Results The dispersalarea of Spemophilus dauricus occupies the epidemic focus area 75.42%;
结果吉林省西部地区黄鼠分布面积占疫源地面积的75.42%；
2
The transports make several runs over drop areas of this type to compensate for the narrowness of the dispersalarea.
这是因为即使空降场变窄，也可以通过运输机群多次进入空降的方法来弥补。
3
Secondly, research the power of population and functional dispersal in central area of Beijing, and make an in-depth study of the actual situation of Beijing.