“下降的原因之一是20世纪80年代的经济形势。”苏塞克斯大学的亚历山大·莫拉迪说。
"One reason for these decreases in height is the economic situation in the 1980s," said Alexander Moradi of the University of Sussex.
在1960年代发起反对滴滴涕运动的环境防护组织现已认可室内使用滴滴涕控制疟疾,塞拉俱乐部和濒危野生动植物信托基金也表示了支持。
Environmental Defense, which launched the anti-DDT campaign in the 1960s, now endorses the indoor use of DDT for malaria control, as does the Sierra Club and the Endangered Wildlife Trust.
卡姆拉·珀塞德·比塞萨尔的立场深受加勒比海英语区的欢迎,因该地区自20世纪90年代后,谋杀犯罪率飙升。
Her stance is popular across the English-speaking Caribbean, where murder rates have soared since the 1990s.
诺塞拉说,他们的新工艺并非十全十美,但它是一个开始,可能重新点燃了太阳能的研究,已大致冬眠自七十年代以来。
Nocera says that their new process is not perfect, but it is a beginning that may re-ignite solar energy research that has been largely dormant since the 1970s.
诺塞拉说,他们的新工艺并非十全十美,但它是一个开始,可能重新点燃了太阳能的研究,已大致冬眠自七十年代以来。
Nocera says that their new process is not perfect, but it is a beginning that may re-ignite solar energy research that has been largely dormant since the 1970s.
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