略語大辞典 [Env] 39 WECPNL weighted equivalent continuous perceived noise level 加重等価連続感覚騒音レベル. 航空機騒音の表現単位. 夜間の騒音に加重した評価単位.weighted equivalent continuous perceived noise level; an index of aircraft noise; [Env:Pub:Traf]. 丸善「略語大辞典」JLogosID : 11850319