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汉语拼音：dī dī tì

一种杀虫剂，成分是双对氯苯基三氯乙烷，白色晶体。杀虫效力大，效用持久。但有积累性残留，对人体健康和生态环境有不利影响，我国已停止生产和使用。[英DDT，是dichloro-diphenyl-trichloro-ethane的缩写]

• 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。

• 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。

• 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。

• 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。

• 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”。

• In this paper, the gas chromatography method is presented for the evaluation of uncertainty to determine HCH and DDT residues in rice.

  介绍了气相色谱法测定大米中六六六、滴滴涕残留量的不确定度评定方法。

• n. 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。

• 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。

• Since DDT was released for civilian use, a process of escalation has been going on in which ever more toxic materials must be found.

  自从滴滴涕被允许民用便逐步升级，人们得不断寻找更有毒性的物质。