ddt造句
31. The pathway of DDT degradation in soil has not been fully ascertained.
32. Many microorganisms possess the ability to dehydrohalogenate DDT to DDE.
33. Conclusion The DDT and BHC contents had declined since the DDT and BHC were prohibited in 1983.
34. 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.
35. The researchers sprayed DDT inside the huts and released Aedes aegypti mosquitoes — the species that carries Chikungunya, dengue and yellow fever — ten metres away from the huts.
35.try its best to collect and create good sentences.
36. Organochrorinated pesticides residues(666, DDT) maintained downtrend and organophosphorus pesticides residues met the national associated criteria except methyl parathion in cereals.
37. Cross - resistances of DDT resistant larvae of Culex pipiens pallens to 14 kinds of organochlorines.
38. It is concluded that Boletus edulis and Gomphidius viscidus reacted to DDT stress through different mechanisms and both had the potential capabilities of degrading DDT.
39. Objective To study the combined estrogenic effects of the isomers and the homologue of DDT pesticide.
40. The use of DDT caused the peregrine falcon to become extinct throughout much of its normal range throughout the Eastern United States.
41. Thousands of new chemicals , like DDT, soon resided in every living tissue.
42. Then came the golden days of DDT ( dichlorodiphenyltrichloroethane ).
43. The extent of pollution by BHC and DDT in agricultural environment gradually decreases toward the northern and southern parts of China.
44. Take DDT, a pesticide that can damage the nerous system.
45. This system was used to measure the flame propagation velocities along the tube, and furthermore to determine the DDT distance.
46. The chemicals seeping out as temperatures rise include the pesticides DDT, lindane and chlordane as well as the industrial chemicals PCBs and the fungicide hexachlorobenzene (HCB).
47. Technique of microwave extraction and GC - ECD was used to analyze hexachlorocyclohexane BHC and DDT in soil.
48. Some chlorinated hydrocarbons are used as insecticides, e. g. aldrin, dieldrin, and DDT.
49. Among them are DDT, aldrin, dieldrin, heptachlor, chlordane, lindane, endrin, mirex, hexachloride, and toxaphene .
50. The Chinese squid was used to monitor the contamination by BHC and DDT as a bio-indicator for the first time in offshore waters.
51. DDT for malaria control, especially in rural areas is cheap, has long residual, repellency, irritant actions and is safe.
52. Fortunately, in 1972, a law was passed to ban DDT, which saved the bald eagle from total wipeout.
53. DDT sprayed into the air kills mosquitoes and other insect pests.
54. The composition of DDT indicates that the residues include the DDT used before forbiddance and their degrading products as well as a small amount of DDT used recently.
55. These insecticides include DDT a compound banned in the United States in 1972.
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