缺口检测先采用边缘变化率算法查找缺口范围，再通过圆弧拟合的方法求出缺口中心位置。
In the wafer notch detecting part, edge flexion method is adopted to find the notch range, then calculating the notch center by means of arc fitting.
结果表明，从环型沼泽湿地边缘向中心，土壤剖面有机碳含量和有机碳储量变化明显。
The results showed that the content of organic carbon in soil profile and the storage of organic carbon in different soils varied obviously from margin to center of the annular wetland.
针对不同宿主菌其噬菌斑形态、大小、透明度、边缘界限、中心透明区及晕环均发生相应变化；
The plaque morphology, size, transparence, central transparent region, and the halo changed according to different host bacteria;
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