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自然衰减
[通信][电子]固有衰减
1、attenuation coefficient───[物]衰减系数
2、attenuation bias───衰减偏误
3、attenuation definition───衰减定义
4、attenuation factor───[核]衰减因数；衰减因数[因子，常数，系数]
5、attenuation constant───[物]衰减常量；减幅常数；衰减[减幅]常数
6、attenuation correction───[医]衰减校正
7、attenuation homebrew───衰减自制
8、natural───adj.自然的；物质的；天生的；不做作的；n.(Natural)人名；(西)纳图拉尔；n.自然的事情；白痴；本位音
9、attenuation───n.[物]衰减；变薄；稀释
1、Estimation of natural attenuation rate of chlorinate solvents contamination in shallow groundwater───浅层地下水氯代烃污染天然衰减速率的估算
2、The result shows that the infrared attenuation performance of expanded graphite worm is better than that of natural flaky graphite.───结果表明：膨胀石墨蠕虫比天然鳞片状石墨具有更好的红外衰减性能。
3、Natural Attenuation and Anaerobic Biodegradation of BTEX Compounds in Groundwater Contaminated by Petroleum Hydrocarbons───石油类污染含水砂柱中BTEX的自然衰减与厌氧生物降解特征
4、The information gained is then used for evaluating three remedial actions, namely, natural attenuation, dredging and capping.───然后使用获得信息的评价，即三种补救行动自然衰减、疏浚和限制。
5、We therefore argue for inclusion of geophysical investigations as part of natural attenuation assessment programs.───因而，建议将地球物理调查作为自然衰变评价程序的一部分。
6、Experimental control group showed that the natural attenuation of ozone, The NAI removal efficiency of ozone only 9%.───实验对照组显示臭氧自然衰减量大，实验中空气负离子去除臭氧减量效益仅达9%。
7、Stable isotope technique is a new, innovative approach to assess the source and natural attenuation of organic pollutants in environment.───稳定同位素技术是近来发展起来用于识别和评价环境有机污染物来源和降解的新方法。
8、A large number of trees, landscape, lush natural attenuation slope construction manpower carving, let all the buildings in the height difference between the natural growth of the scattered.───大量树木、景观、坡地的繁茂自然弱化建筑人力雕琢，让所有建筑在高差错落的地势间自然生长。
1、Analyses the characteristics of transmission, natural attenuation, regeneration and superposition of noise.