[KongchangAI]
Unverified85% confidenceTradeoffTime unknown

音量越大的哨子通常吹奏所需气流越足,肺活量弱者或伤员(如失温、力竭状态)可能吹不响120dB高阻力哨,此时低阻力设计比极限分贝更实用

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