短語詞組用作名詞 (n.)形容詞+～bacterial decay 細菌性腐爛creeping political decay 政治上的逐漸腐敗dental decay 牙齒齲蝕mental decay 智力衰退moral decay 道德淪喪premature decay 早衰radioactive decay [物]放射性衰變名詞+～tooth decay 蛀牙；齲齒；齵齒短語alpha decay 衰變;阿法衰減;阿伐衰變weld decay 焊縫腐蝕;[機]焊接區(qū)晶間腐蝕;焊接接頭晶間腐蝕;焊接侵蝕decay law [物]衰變定律;衰減定律;衰變律;衰變規(guī)律anaerobic decay 厭氧分解;缺氧分解作用;厭氧腐爛;厭氧分化decay heat [核]衰變熱;翻譯spontaneous decay 自發(fā)衰減;自發(fā)衰變;自發(fā)裂變;自發(fā)輻射衰變abnormal decay 反常衰變physical decay 自然衰退Decay Regions 衰減區(qū)域decay rate 衰減率；衰變率；衰變速度exponential decay 指數(shù)式衰減decay time [物]衰減時間in decay 已腐朽，已腐爛decay resistance 耐腐性，耐腐蝕性能decay curve 衰變曲線；衰減曲線；退化曲線；余輝曲線fall into decay 損壞，腐爛；衰敗 返回 decay