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1)  propagation forecasting
传播预极(气)
2)  propagation prediction
传播预测
1.
Accurate and fast propagation prediction method for urban microcellular systems;
城市微蜂窝的快捷精确传播预测方法
2.
Ray tracing is a useful tool for propagation prediction By using features of reflection and refraction by objects of building,a patched model combined with ray tracing technique is presented The accuracy of prediction has been improved The software that can give the path loss of any site inside the building has also been developed Results of calculation agree well with measuremen
本文在介绍了电波传播预测的射线跟踪法 ,根据建筑物体对电波的反射和透射的特点 ,结合射线跟踪法 ,提出了一种室内物体的分块模型 ,设计了射线跟踪的递归算法 ,根据这一方法可以计算出当发射点在室外而接收点在室内时室内各处电波传播的路径损耗。
3.
Conventional method in radio propagation prediction is based on the fading channel models,with the aid of computer,mass of data were analyzed to make the propagation model localization.
常用的电波传播预测方法,一般是以路径损耗为预测模型,结合大量的测试数据,利用计算机进行辅助分析,实现传播模型本地化。
3)  smoke transport
烟气传播
1.
Analytic results prove that smoke transport from the remote location to the fire .
此外,实验结论的基础上,通过数值模拟技术更为细致地揭示了上层烟气传播的路线。
4)  airborne transmission
空气传播
5)  Prevention of sexual HIV transmission
性传播预防
6)  extremely long wave propagation
极长波传播
补充资料:设备安装前的准备工作——设备的预装配与预调整
设备安装前的准备工作——设备的预装配与预调整
 
文章编辑:moji
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