短語詞組短語responder -beacon 應答器信標RSP Responder Beacon 應答器信標;應答機信標radar responder beacon 雷達應答標;雷達信標;雷達應答標雷達信標interrogator responder beacon 問答器信標responder beacon u 應答信標frequency radar responder beacon 掃描頻率雷達應答器fixed frequency radar responder beacon 固定頻率雷達應答標sweep frequency radar responder beacon 掃描頻率雷達應答器 返回 responder beacon