At-sea distribution and abundance of seabirds and marine mammals off southern California GIS resource database: Aerial seabird and marine mammal surveys off southern California, 1999–2002
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Background - Interest in developing alternative sources of renewable energy to reduce dependence on oil has increased in recent years. Some sources of renewable...
研究背景：近年来，为降低对石油的依赖而开发可再生替代能源的研究兴趣日益高涨。部分可再生能源……
