For Glasser′s bell shaped magnetic lens, third , fifth , seventh , ninth order spheric aberrations have been analytically derived and numerically calculated.
对于Ｇｌａｓｅｒ钟形磁场的３、５、７、９级球差系数进行了数值计算。
The morphology and infraciliature of Vorticella campanula Ehrenberg, 1831 were investigated and described from life and protargol impregnated specimens.
利用活体观察及蛋白银染色技术对钟形钟虫的形态学及表膜下纤维系统进行了研究 ,分别给出活体及蛋白银制片后标本的鉴别特征及表膜下纤维系统。
