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。
光学、声学 光学 shadow 影 shadow ①影†，阴影 ②盲区 雷达
＞组合数学、组合设计与图论＞组合数学＞释义 shadow 影 shadow 影子；追跡
计算机应用 计算机辅助设计与图形学 释文 shadow 阴影
- urban planning exhibition center
- Urban Planning Forum
- Urban Planning International
- urban planning management
- urban planning of Baotou
- urban planning of Chongqing
- urban planning of fire control
- Urban Planning of Macao
- urban planning of Pyongyang
- urban planning of Shengyang
- urban planning of Tianjin
- urban planning of Versailles
- urban planning of Wuhan
- urban planning on disaster resistance and prevention
- urban planning on flood control
- urban planning regulations
- urban planning regulation system
- Urban Planning Society of China
- urban plant
- urban plaza public space design
- urban politics
- urban population
- urban population base of China
- urban population density
- urban population distribution in China