...s perceived noise level 释义：加权等效连续感觉噪声级,计权等效连续感觉噪声级 perceived noise decibel 释义：感觉噪声分贝(感觉噪声级单位符号) EPNL 释义：[=effective perceived noise level]有效感觉噪声级 ..
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N a unit for measuring perceived levels of noise by comparison with the sound pressure level of a reference sound judged equally noisy by a normal listener 感觉噪声分贝 ( abbr: PNdB)
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