A dour National Research Council report recently poured cold water over the notion that plug-in vehicles will make much difference on oil use or the environment before 2030 at the earliest.
而最近National Research Council的报告则给先前关于充电式汽车将会在2030年前大幅度减少石油使用量并且改善环境的想法泼了冷水。
At present, system research of Chiangnan rural water environment is few, water landscape development pattern related research is especially rarely seen.
目前，有关江南乡村水环境的系统研究较少，水体景观利用开发的模式研究尤为鲜见。
So the research of prevention water environment form pollution has been a global issue.
水环境污染治理的研究已成为一个全球性的课题。
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