...es graph ; Sparse graph 稀疏文件 sparse file 稀疏群落 open community ; open commuunity ; open vegetation open community ; opencommunity open vegetation ..
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稀树大草原图片。长颈鹿，像这样在肯尼亚的马赛马拉国家保护区之一，是少数动物饲料在稀疏的树木群落的大草原。
Giraffes, like this one in Kenya's Masai Mara National Reserve, are among the few animals that feed on the sparse tree populations of the savanna.
对在无自然稀疏和有自然稀疏状况下有关植物群落的竞争密度效应的两个倒数方程的差异进行了理论分析。
The differences between the two reciprocal equations of the competition-density effect in nonself-thinning populations and self-thinning populations were analyzed theoretically.
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