防空预警 meaning in Chinese

air defence early warning

Air defense alerting device
防空预警装置
But , meter - wave radar itself also has the shortcoming , such as low precision of angle measurement and so on , therefore it mostly applies in the air defense early warning field at present , but very difficult applies in guidance field effectively
但是,米波雷达本身也存在角度测量精度低等缺点,所以目前大多应用在防空预警探测领域,而很难有效地应用于制导领域中。