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noise rating curve
gen. 噪音值曲线
el. 噪声评价曲线
tech. 噪声评级曲线; 噪声分级曲线; 噪声评价NR曲线
]noise rating curve
ecol. 噪声分级曲线[NR 曲线
noise rating curves
otorhinol. 噪声标定曲线
tech. 噪声评价曲线
 English thesaurus
Noise Rating Curves
aeron., abbr. NRC