n.波段
An achromatic conformal optical system working within infrared waveband was designed. 摘要设计了一个红外波段消色差共形光学系统。
Operating in the heavy congested SW band,it is difficult for HFradars to find continuously useable waveband for signal modulation. 高频雷达工作在十分拥挤的短波波段内，可资用的能满足信号调制的连续频带很难获得。
