1977年,在以色列中部的Judean沙漠及Negev北部地区发现了铀含量高达230ppm,平均为110ppm的磷灰岩以及一些次生铀矿物。之后的几年......

Global warming and climate change are the most important ecological issues of our time. The most well-known factor in th......

A stochastic numerical approach was developed to model the actual standing biomass in the sand dunes of the northwestern......

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