ddt造句
1. The house is regularly spraying with DDT.
2. DDT is a pesticide that was first synthesized in 1874.
3. Well-known toxic pesticides include Aldrin, Chlordane, and DDT.
4. In 1873, the chemical DDT was first synthesized.
5. The insects can be exterminated by spraying DDT.
6. Next in line were DDT and chlordane.
7. These insects have become resistant to DDT.
8. The underneath cargo is'stained contaminated the DDT dust.
9. Many insects have became resistant to DDT.
10. The government vetoed the use of DDT.
11. They're spraying DDT. to kill the insects.
12. Methoxychlor is a DDT substitute and one of endocrine-disrupting chemicals which heavily pollutes the environment.
13. The transfer from qualitative research to quantitative analysis showd the inevitable tendency of research on the residual age index of dichlorodiphenyltrichloroethane(DDT) in soils.
14. We measured serum DDT and its metabolites at the Harvard University Organic Chemistry Laboratory.
15. However, the accumulative concentrations of DDT and BHC in 1998 was much higher than that of some foreign countries.
16. DDT tube, photoelectric cell, strain gauge and witness board are used to study the transition characteristics of the deflagration to detonation of NEPE propellant slurry in the mixing process.
17. The residue of DDT in soil is rather high due to the application of the pesticide Kelthane to prevent and kill red spider on the wheat field and the pesticide Kelthane contains DDT.
18. Led to the ban of DDT because of its highly toxic nature.
19. DDT molecules in water tend to migrate to the surface.
20. The residual, repellency and irritant actions of DDT keeps out even resistance mosquitoes.
21. Encouraged the use of DDT indoors, but discouraged it for outdoor use.
22. This paper deals with the effect of DDT and BHC on amino acids content in Chlorella vulgaris Beij so as to provide theoretical basis for environmental bio-engineering and biological monitoring.
23. Academic and business critics of Rachel Carson, for example, argued that eliminating DDT removed the most effective pesticide in the fight against mosquitoes that spread malaria.
24. Preliminary study on the measure of fines concentration in the filtrate of Dynamic Drainage Test DDT.
25. The acoustoelectric current also reveals Coulomb Blockade as a function of split gate voltage when microwave signal with the resonance frequency is coupled to DDT.
26. Microbiological degradation is an effective and environment - friendly method to eliminate DDT pollution.
27. Microwave extraction technique is a rapid, accurate and effective method to determine trace hexachlorocyclohexane and DDT in soil.
28. Chlorinated hydrocarbon A hydrocarbon in which one or more hydrogen atoms are replaced by chlorine atoms. Some chlorinated hydrocarbons are used as insecticides, e. g. aldrin, dieldrin, and DDT .
29. Role in the nervous system of pests, such as DDT, parathion , carbofuran, esters, such as pyrethrum.
30. The contents of organochlorine were descending apparently since the DDT and BHC pesticides were forbidden by Chinese government in 1983.
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