The practical examples show that reliability distribution method and reliability growth model for the rainfall-enhancement and anti-hail rocket and its units are feasible.
2
同时阐述了用雷达指挥火箭进行防雹作业的技术方法和要求。
Meanwhile, the technique and requirement for hail suppression by this rocket conducted by a radar has been expounded.
3
他们制造这些土火箭，是为了驱云防雹。
They made these indigenous rockets to disperse clouds and prevent hail storms.
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