工学 雷达影像 释 shadow 阴影 一个坡面背向雷达的照射方向，雷达信号无法到达该坡面及其相关区域，在雷达影像上相应的成像区域的信号为零的现象。
umbra 本影†，阴影[区]
计算机应用 计算机辅助设计与图形学 释文 shadow 阴影
- maintenance program of aircraft
- maintenance project of Guangji Temple ancient buildings in Jinzhou, Liaoning
- maintenance rate
- Maintenance Regulation
- maintenance & rehabilitation on airfield area
- maintenance requirement
- maintenance requirement of aircraft materiel
- maintenance respiration
- maintenance scheduling of electric power system
- maintenance service program
- maintenance standby time
- maintenance strategies for civil engineering
- maintenance strategy of aircraft materiel
- maintenance theory
- maintenance therapy
- maintenance time
- maintenance work order management
- main test
- main theorem
- main title music
- Main-Traveled Roads
- main tree species
- main variable
- main vowel
- Mainz