| 释义 |
degradationdegradation[ˌdeɡrəˈdeiʃən]n.1.■降级, 免职2.■堕落; 低落3.■恶化, 退步4.■【生】退化;【地质】(地表的) 剥蚀5.■【化】降解, 递降分解(作用)6.■【物】(能量的)衰变, 减低, 损失7.■(永冻层)消退8.■老化9.■陆削作用; 刷深
继承用法degradationaladj.
词性变化degradative[ˈdeɡrədeɪtɪv]adj.
特殊用法acid degradation1.■酸降解alkali degradation1.■碱降解(作用)bacterial degradation1.■细菌性降解biological degradation1.■生物降解(作用); 生物体退化chemical degradation1.■化学降解color degradation (=colour deterioration)1.■变色(汽油或灯油)controlled degradation1.■可控降解copper degradation1.■铜降解energy degradation1.■能的递降environmental degradation1.■环境退化enzymic degradation1.■酶分解, 酶法降解graceful degradation1.■功能退化, 功能衰减hydrolytic degradation1.■水解降解mass degradation1.■物质降解microbial degradation1.■微生物降解(作用)nitrogen degradation1.■(土壤中)氮降解organic degradation1.■有机降解; 发霉oxydative degradation1.■氧化降解(作用)ozone degradation1.■臭氧降解(作用)photochemical degradation1.■光化降解photooxidative degradation1.■光氧化降解random degradation1.■无规降解size degradation1.■粉碎; 磨碎spectrum degradation1.■能谱降级starch degradation1.■淀粉降解ultrasonic degradation1.■超声降解(作用)degradation of food chain1.■食物链的降解degradation of pesticide1.■农药降解 |