The reason is that after a favored version of a gene has swept through the population, mutations start building up in its DNA, eroding the uniformity that is evidence of a sweep.
原因在于，当一个理想版本基因“扫描”一个人群，变异便开始在DNA中逐渐累积，这会将基因的统一性——基因扫描的证据——加以破坏。
When performing a sweep the user specifies a motion vector, this specifies the direction and magnitude of the path the objects is swept over.
为了执行一次扫掠，用户需要指定一个运动矢量，它指出了方向和将要用于扫掠的路径长度。
The areal heterogeneity directly influences the swept area and sweep efficiency of the injected water, and thus controls the areal distribution of the remaining oil.
平面非均质性直接影响到注入水波及面积和波及效率，从而控制剩余油在平面上的分布。
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