雷达信号摄谱仪 雷达信号摄谱仪的英文 英语翻译 radar signal spectrograph 拓展翻译 雷达信标器radar marker棱镜摄谱仪prism spectrograph雷达radarradar雷达常数radar constant雷达发射器radar transmitter雷达反测量radar countermeasures雷达反干扰radar antijamming雷达反射间距radar-reflection interval雷达范围radar range雷达范围指示器radar-coverage indicator雷达方程式radar equation雷达分布交换盘radar distribution switchboard雷达复航radar homing雷达干扰radar jamming雷达高度radar altitude雷达高度计radar altimeter雷达海里radar nautical mile雷达航空术teleran雷达轰炸准器radar bomb-sight雷达回音radar echo