The shooting elevation of rocket has a great influence on the effect the principle chosen the optimal shooting elevation was given and the mechanism of rainfall enhancement by agl - loading rockets was also analyzed in this paper 给出了火箭最佳发射仰角的选取原则，并分析了火箭催化增雨的机理。以期为提高人工增雨火箭作业的效果提供科学技术参考。
