This paper introduce the mathematical model to realize the electronic analog computation to missile allowable launching distance and explain the transforming way of radar range scale.
介绍了为实现电子模拟运算导弹允许发射距离的数学模型，并说明了雷达距离比例尺的变换方法。
Through the introduction of distance training and the demand of NSTC, analyzing the feasibility and necessity of launching distance training. And discuss the selection of distance training mode.
通过对远程培训及中心需求情况的介绍，分析了中心开展远程培训的必要性和可行性，并探讨了选用的远程培训模式。
Construction of network teaching environment of "Guiding Leaning crowd" is the prerequisite and basis of launching modern distance education.
构建导学群网络教学环境是开展现代远程教育的前提和基础。
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