Methods FNAC was performed in fleet-lymph nodes, then we contradistinguished the cytology diagnosis and histological diagnosis.

方法对浅表可疑淋巴结行细针吸取细胞学检查并与纤维鼻咽镜病理活检对照分析。

The iron phosphite eutectic and ledeburite in wearre-sistant cast iron are contradistinguished with metallography and microhardness and scanning electron microscope.

采用金相、显微硬度与扫描电镜，以区别含磷减磨铸铁中磷共晶与菜氏体。