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Sirens The early warning system for GLOFs comprises automatic water-level monitoring devices, weather stations and 17 sirens to warn vulnerable communities along the Punakha-Wangdue valley.
Nghĩa của câu:Sirens The early warning system for GLOFs comprises automatic water-level monitoring devices, weather stations and 17 sirens to warn vulnerable communities along the Punakha-Wangdue valley.
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