论文部分内容阅读
河北省隆化县利用飞机播种造林已有30多年历史,为使飞机寻找目标准确、落种均匀,一直采用人工地面设置导航信号的方法。随着科学的发展,隆化县2006年6月尝试利用
Longhua County, Hebei Province, the use of aircraft sowing afforestation has more than 30 years of history, in order to make the aircraft to find the target accurate, uniform species, has been using artificial ground set navigation signal method. With the development of science, Longhua County in 2006 June try to use