Unverified77% confidenceTradeoffTime unknown
报警铃声响度追求越大越好会导致误报时严重扰民和自身睡眠中断,营地密集的商业营地应选可调音量或80分贝以下款,荒野无人区才用90分贝以上强响款
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77%
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Long-term
Relevance
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