短語詞組短語decay -curve 衰減曲線Decay y curve 衰變曲線composition decay curve 混成衰變曲線luminescence decay curve 發(fā)光衰減曲線sound decay curve 聲音衰變曲線activity decay curve 釋義放射性衰變曲線growth -decay curve 衰變曲線roll decay curve 橫搖衰減曲線fluorescent decay curve 熒光衰減曲線 返回 decay curve