搜索 - 科创

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引起了各国军方的重视.说起地表效应,还有一个有趣的故事.1932年5月24日,德国的一架"多克斯"号水上飞机正在大西洋上空飞行时,忽因发动机部分油路堵塞,发动机转速降低,飞机急速下降,眼看一场机毁人亡的事故顷刻就要发生

由于这一事故，UCI于1914年修改了自己的章程，并明文规定禁止使用空气动力装置。不久，人们就遗忘了带有动力装置的自行车的比赛。 1933年7月7日，一个历史性的日子。

环境监测可分为：一是监视性监测，即常规监测，主要了解污染的状况与变化趋势、评价环境质量、积累基本数据；二是科研性监测，是研究污染物的性质及其迁移转化规律和最终的归宿，及对环境的影响和生态的效应；三是事故性监测

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