早期警戒情報 そうきけいかいじょうほう Shared Early Warning; SEW; radar and satellite-based system for detecting missile, etc. attacks n early warning information on extreme weather n abbr Advanced ➥
全国瞬時警報システム ぜんこくしゅんじけいほうシステム nationwide instantaneous alert system; J-Alert system; Japan's satellite-based disaster warning system n Advanced ➥