そうなんしんごう
遭難信号
2. Distress signalA distress signal is an internationally recognized means for obtaining help. Distress signals take the form of or are commonly made by using radio signals, displaying a visually detected item or illumination, or making an audible sound, from a distance. A distress signal indicates that a person or group of people, ship, aircraft, or other vehicle is threatened by grave and imminent danger and requests immediate assistance.
Read “Distress signal” on English Wikipedia
Read “遭難信号” on Japanese Wikipedia
Read “Distress signal” on DBpedia
Read “Distress signal” on English Wikipedia
Read “遭難信号” on Japanese Wikipedia
Read “Distress signal” on DBpedia
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