本文用Ｇｒｉｍｅｌｉｕｓ嗜角法对１２只只结大蟾蜍消化道嗜银细胞的分布及形态进行了初步观察，结果显示：９１）中华大蟾蜍消化道嗜银细胞的分布密度依次为：食管为......

<正>Ansotropic diffusion has good effect on reducing noise and preserving edge, but it may lose some details due to the ......