短語詞組短語laser beacon frequency locking 激光信標(biāo)鎖頻search and rescue beacon frequency 搜救信標(biāo)頻率frequency beacon 信標(biāo)頻率low frequency beacon 低頻信標(biāo);翻譯;低頻信標(biāo)英語dual frequency beacon 雙頻信標(biāo)double frequency beacon [測]雙頻信標(biāo)LFB Low Frequency Beacon 低頻信標(biāo)radio -frequency beacon 射頻信標(biāo)機double e frequency beacon 雙頻信標(biāo) 返回 beacon frequency