radar cross-section雷达: radar有效: effective; valid; efficaciou ...区: H region; H雷达有效区域显示器: radar coverage indicator雷达有效截面: radar effective cross section下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:雷达有效区，即可在微信中查询翻译
