以下为句子列表:
英文: By 1970 DDT spraying, elimination of mosquito breeding sites and the expanded use of antimalarial drugs freed more than 500 million people, or roughly one third of those previously living under malaria's cloud.
中文: 到了1970年,由于喷灑DDT、清除蚊子繁殖地,以及扩大使用抗疟药物,超过五亿人得以免受疟疾的威胁,约略是原先生活在疟疾阴影下人口的1/3。
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英文: In the early 1960s, Rachel Carson's book Silent Spring heightened concern about the danger of indiscriminate pesticide use, and as a result, the Department of Agriculture banned the use of DDT completely in 1969.
中文: 60年代初,雷切尔·卡森所著的《沉默的春天》加深了人们对随意使用杀虫剂危害的担忧,因此1969年农业部彻底禁止了滴滴涕。
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英文: It is very difficult to research the burning characteristic of high energy propellant in the DDT pipe applying the ionization probe.But the satisfactory results can be easily got using photoelectricity triode.
中文: 用探针法研究DDT管中高能推进剂的燃烧波和爆轰波的传播特性,因各种因素的影响难以得到满意的结果,用光电三极管代替电离探针可得到相对理想的结果。
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英文: In the acute toxic experiment, LC0 to Eisenia foetida of Lindane DDT Deltamethrin and carbofuran are 8.0mg kg-, 880.7 mg kg- .8 mg kg- .8 mg kg- respectively.
中文: 急性毒性实验中,林丹、DDT、溴氰菊酯、呋喃丹对赤子爱胜蚓的LC_(0)分别为:8.0mg·kg~(-)、880.7mg·kg~(-)、 .8 mg·kg~(-)、 .8mg·kg~(-)。
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英文: INVESTIGATION OF THE DEGRADATION PRODUCTS AND THE REACTION. MECHANISM OF DDT WITH METAL COUPLES
中文: 金属对催化还原DDT的降解产物及其反应机制的研究
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