自然保护思想和保护区建设中土地的可获得性是形成上述特征的主要因素。
The main factors afforting the variation are the idea of conservation and the mpibility to acquire land for reserves.
自然保护思想和保护区建设中土地的可获得性是形成上述特征的主要因素。
The main factors afforting the variation are the idea of conservation and the mpibility to acquire land for reserves.
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