您要查找的是不是：
- remediation of DDT in soil 土壤DDT污染修复
- The quantitative token of the residual age index of DDT in soils was primarily discussed,and the normalized residual time index(NRTI) of DDT was designed as one of the methods. 初步探讨了土壤中DDT残留时间的定量表征,设计出归一化的DDT残留时间指数(NRTI)作为定量表征土壤DDT残留时间的方法之一。
- Analysis of DDT in soil sample by direct sample introduction 直接进样法测定土壤中残留的滴滴涕
- The pathway of DDT degradation in soil has not been fully ascertained. 在土壤中滴滴涕降解的途径还没有充分调查。
- AGING AND BIOAVAILABILITY OF DDTs IN SOIL DDTs在土壤中的老化规律及生物有效性
- Technique of microwave extraction and GC-ECD was used to analyze hexachlorocyclohexane BHC and DDT in soil. 用微波萃取和GC-ECD联用技术,对土壤中六六六、滴滴涕进行了分析。
- For example, it typically takes about 4 years for DDT in soil to be decomposed to 25 percent of the original level applied. 例如：土壤中的ddt要分解到原来施用水平的25%25,通常需要花四年的时间。
- Microwave extraction technique is a rapid, accurate and effective method to determine trace hexachlorocyclohexane and DDT in soil. 利用微波萃取可快速、准确、有效的测定土壤中痕量六六六、滴滴涕。
- It suggests that the environmental exposure of DDT can be exsressed as the actual content of DDT in agricultural soil which should be equal to the sum of both the application of DDT and its residu- al accumulation in the same year. 本文提出滴滴涕(DDT)的环境接触量可用农田土壤DDT的实际含量来表示,此量应等于当年的施用量与土壤中累积的残留量之和。
- Soil contamination especially heavy metal pollution was a severe problem.Many gove rnments and scholars were paying much attention to the remediation of heavy metal contamination in soil. 土壤污染是当今面临的一个严峻的问题,其中重金属污染尤为严重,因此重金属污染土壤的修复日益受到各国政府和学者的重视。
- The recoveries of DDT in seawater was 88.23%,and the mean within-assay was less than 6.60%. 海水样品DDT回收率88.;23%25;批内变异系数6
- Microwave extraction is a rapid,accurate and effective method for the to determination of trace hexachlorocyclohexane BHC and DDT in soil with higher efficiency,accuracy and precision. 实验具有操作简便,分析时间短,应用范围广等优点。并且进行了回收率、重现性及精密度的测定。
- Amounts of moisture in soil vary greatly. 土壤中湿度变化很大。
- Definition of remediation of children. 救济儿童定义。
- Remediation of DDTs Contaminated Soil by Medicago Sativa 紫花苜蓿（Medicago sativa）对有机氯农药DDT污染土壤的修复研究
- Congress then banned the use of DDT in1972. 国会因而在1972年立法禁止使用滴滴涕。
- The government vetoed the use of DDT. 政府禁止了DDT的使用。
- Determination HCH and DDT in soil samples 测定土壤样品中六六六和滴滴涕
- The residual levels of DDTs, HCHs in soil were different with different utilization types. 土壤中DDTs、HCHs残留在不同土壤利用方式下有所不同.
- Detection of BHC and DDT in Soil Using Ultrasonic Extraction 超声波提取法测定土壤中的六六六、滴滴涕
以上内容独家创作，受著作权保护，侵权必究
海词词典，十七年品牌
