研究人员自基底细胞癌患处周围取空气样本，并与健康样本相同区域皮肤进行比较，发现了不同轮廓的化合物。
The researchers sampled air above basal cell tumors and found a different profile of chemical compounds compared to skin located at the same sites in healthy control subjects.
其中算法部分包括提取激光线模块、计算轮廓线模块、取中心颜色线模块；
Among them algorithm partly includes to be drawn laser thread module, calculation contour module and takes the center color thread module;
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