Developed a high-powder,efficient and practical air powder vacuum cleaner after studing its working principle in order to suck up air powder,the vacuum cleaner is vevy practical.
通过对吸尘器工作原理的学习,研究出一种大功率高效实用的空中粉尘吸尘器,用来吸掉空中的粉尘,这种吸尘器实用性很强。
Threat value of air target is that it can evaluate damage degree of attacking ground(surface) target in command and control of air defense system.
空中目标的威胁值评估是指空中目标对所攻击的地(水)面目标可能造成的毁伤程度进行评价。
A parameter estimating method for air targets by fire control system of air defense weapon is presented in allusion to the characteristics in this paper.
针对防空武器火控系统的特点,提出了一种防空武器火控系统对空中目标参数估计的方法,可以在不知道目标距离的条件下得到目标的航向角与俯仰角,实现对目标的被动式跟踪,对估计误差的统计特性进行了分析,仿真结果表明了该方法比传统的估计方法更加可行。
