1.Once upon a time, this was the primary technique, and, in fact, many countries got rid of malaria through DDT.这曾经是基本的技术，而且事实上，很多国家就是用DDT消灭了疟疾。

2.IRS has proven to be just as cost effective as other malaria prevention measures, and DDT presents no health risk when used properly.室内残留喷洒已证明如同其它疟疾预防措施一样经济有效，并且滴滴涕在正确使用时无健康风险。

3.DDT was banned in the 1970s, in part because it had been found to be weakening bird eggs, resulting in serious population declines.滴滴涕在20世纪70年代被禁止使用，部分原因是它已被认定是鸟蛋变脆的罪魁祸首，造成了鸟类数量的严重下降。

4.What was not known at the time, however, was DDT's propensity to accumulate, persist and damage the environment.然而在那时没有人知道，滴滴涕有富集性，稳定性并且破坏环境。

5.This book caused DDT to be made illegal, and helped save the Bald Eagle, among hundreds and hundreds of other animals.它使DDT非法化，在数百万的各类动物中，挽救了白头鹰——美国国徽的标志。

6.The use of DDT caused the peregrine falcon to become extinct throughout much of its normal range throughout the Eastern United States.DDT的使用使得生活在美国东部的猎鹰在其许多正常生活区域内归于灭绝。

7.The effects of the size and shape of propellant grains, oxygen balance of charges and its permeabilities on the DDT are analyzed.分析了推进剂颗粒尺寸和形状，装药的氧平衡和渗透性对DDT的影响；

8.Okay, we could talk about Rachel Carson and DDT, but we know it wasn't good for you and me.好，那我们现在来谈谈蕾切尔·卡逊和滴滴涕，我们知道，滴滴涕对我们每个人都是有害的。

9.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。

10.they also requested that the Secretary use his power to suspend the marketing of DDT immediately as an "imminent hazard. "当事人还要求农业部长利用其权力马上中止对滴滴涕的销售，因该农药具有“紧迫的危害性”。