将新劈开的云母片制成直径大约为2厘米的圆片,中心挖一个直径略小于3毫米的圆孔(即稍小于电子显微镜铜网的直径)。再用一张滤纸亦剪成直径为2厘米的圆片,在中心放一带有支持膜的电子显微镜铜网(其支持膜可以是火棉胶膜,也可以是聚乙烯醇缩甲醛膜,支持膜的制备与常规电子显镜铜网支持膜的制备方法相同)。放好铜网后,再 The newly cleaved mica was made into a disk about 2 cm in diameter. The center was dug into a circular hole slightly smaller than 3 mm in diameter (ie slightly smaller than the diameter of the electron microscope copper mesh). Then use a piece of filter paper is also cut into 2 cm diameter discs, placed in the center with a support film of electron microscopy copper mesh (the support film can be cotton wool film, it can be polyvinyl formal membrane, support The preparation of the membrane is the same as that of the conventional electron microscope bronze support membrane). Put the copper net, and then