种皮上留有种脐或种痕.The seed coat is marked with a hilum or seed scar.偶而, 脐周淋巴结可触及.Occasionally, lymph nodes can be found in the vicinity of the umbilicus.方法体外培养人脐静脉内皮细胞,通过传代形成细胞的衰老模型.Methods Human umbilical vein endothelial cell...
Digitizing of X - ray radiography image is the trend of traditional X - ray imaging.X 线放射图像的数字化是常规 X 线成像的发展大趋势.An inversion analysis method for improvement of CCD imaging resolution is proposed.提出了一种提高ccd成像分辨力的反演解析法.With...