The precision estimation of RCS is very important for aerocraft stealth design.目标RCS的精确计算和预估是飞行器隐身设计极其重要的一部分.High - speed reentry aerocraft is usually with terminal guidance system.高速 再入飞行器通常具有末制导系统.So the effect of unst...
利用超声无损检测C扫描图像,可以反应钎焊缺陷及其分布特征,并自动计算出钎着率.The theoretical calculation of brazed rate based on C - scan image is described.这个特性对工件钎焊质量方面很重要.This feature is especially important for a quality brazing processes.真空钎焊是一种优良的连接技术....