The typical method is to look up the entity by its primary key, because that will guarantee a unique result.
典型的方法是根据实体的主关键字进行查询，因为这可以保证产生一个独一无二的结果。
The first algorithm gives unique result unaffected by the handling order of points concerned, and it calculates the control vertexes at once without estimation and correction.
第一种算法的特点是重建结果不依赖于顶点的处理顺序，不需要进行控制顶点的初估及修正，可使各控制顶点的计算一次完成。
As a result of these diverse methods by which plants supply resources, unique soil communities form under different plant species and under plant communities that differ in composition.
由于植物提供资源的方法不同，在不同的植物种类和组成不同的植物群落下形成了独特的土壤群落。
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