ddt

The insects can be exterminated by spraying DDT .

可以用喷撒滴滴涕的方法大量杀死这种昆虫

DDT Technology in Digital Television and Its Application Analysis

数字电视DTT技术及实际应用分析

The DDT time is mainly free from the impact of working frequency .

燃烧转爆轰时间基本不受工作频率的影响。

The results show that the ignition position has an effect on DDT .

结果表明：点火位置对燃烧转爆轰过程有影响。

The environmental impact analysis on phasing out DDT in China

中国淘汰滴滴涕的环境影响分析

A Test Generation Method for Delay Fault Based on I_ ( DDT ) Test

一种基于IDDT的延时故障测试产生方法

An I_ ( DDT ) Test Generation Algorithm Based on Chaotic Search

一种基于混沌搜索的IDDT测试产生算法

Application of a wide range pressure gauge to DDT experiments in energetic materials

高量程压力传感器在含能材料燃烧转爆轰实验中的应用

The optimum conditions were obtained by tests on the main factors influencing its DDT process .

通过对影响DDT关键因素的优化试验，得出了最佳装药条件。

The research on the process of microbial remediation of DDT in soil .

土壤中DDT的微生物修复过程研究。

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

DDT molecules in water tend to migrate to the surface .

在水中滴滴涕分子趋向于向水面移动。

Analysis of DDT in soil sample by direct sample introduction Direct sample injection method are adopted .

直接进样法测定土壤中残留的滴滴涕采用直接进样分析。

Inducing effect of specific plants for remediation of DDT polluted soil .

特异性作物对土壤中DDT降解的诱导作用研究。

The Research of Fault Simulator for I_ ( DDT ) Testing

I（DDT）测试故障模拟器的研究

The DDT mechanism of the propellant has been discussed .

分析了该高能推进剂的DDT机理。

Effect of Three Low-Molecular Organic Acids on Desorption of DDT in Soil

3种低相对分子质量有机酸对土壤中DDT的解吸

Soil quality Determination of BHC and DDT Gas chromatography

GB/T14550-1993土壤质量六六六和滴滴涕的测定气相色谱法

Bioavailability of DDT in soil with various aging periods to wheat roots

土壤中不同老化时间的DDT对小麦根系的生物有效性

Investigation of the degradation products and the reaction . mechanism of DDT with metal couples

金属对催化还原DDT的降解产物及其反应机制的研究

Root uptake of DDT decreased with the increasing of ageing period as well .

植物根吸收随老化时间增加而下降。

WHO put its authority behind the use of DDT for indoor residual spraying .

世卫组织支持使用滴滴涕进行室内残留喷洒。

Analysis of analytical quality assurance of 666 and DDT Preliminary Study on Reference Material for Microanalysis Quality Control

六六六、滴滴涕分析质量控制结果分析

Simulation of multi-media transfer and fate of DDT in the Lanzhou Region

兰州地区DDT的环境多介质迁移和归趋模拟

Determination of BHC and DDT Residues in Six Chinese Patent Medicines

6种中成药中林旦和滴滴涕的含量测定

The part intensively investigates the convergence of the learning algorithms by using the DDT method .

本部分采用DDT方法对PCA神经网络学习算法的收敛性进行深入研究。

The effects of carbon source , pH , temperature and DDT concentration on degradation was determined .

测定了不同碳源、pH、温度及DDT浓度对细菌降解能力和生长量的影响。

DDT Residual in the Typical Soil Types of Pearl River Delta Region and Its Potential Risk

珠江三角洲地区典型类型土壤中DDT残留及其潜在风险

Determination of BHC and DDT in water by capillary column GC

毛细柱气相色谱法测定水体中六六六、滴滴涕

There was some ecological risk of DDT in this area which should be paid attention to .

生态风险评估则显示该区土壤中的DDT具有一定的生态风险，应予以重视。