?潜艇应急识别信号

emergency landing signal 紧急着陆信号 submarine emergency identification signal 应急识别信号 ; 潜艇应急识别信号 emergency lamp signal telegraph 应急信号灯 ; 应急信号灯传令钟 ..

?应急识别信号

... 识别信号鉴别信号 identification signal 应急识别信号 submarine emergency identification signal 识别信号发生器 Identification Generator ...