防災スピーカー 防災無線 アンテナ
Schlüsselwörter
disaster,
emergency,
quake,
fire,
water damage,
announcement,
loudspeaker,
megaphone,
sound,
buzzer,
social,
infrastructure,
japan,
city hall,
city hall,
improvement,
antennae,
mast,
high,
safe,
peace,
municipality,
open air,
government,
outside,
blue skies,
sky,
cloud,
alert
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