球形模型 meaning in Chinese

spherical model

In chapter 3 , a lot of researches about the dynamic imaging for the brain hematoma based on a 2 - d circular model and 3 - d sphere model were studied . the effect on the brain surface potentials ( bsps ) due to the change of hematoma within brain in a 3 - d sphere model was discussed here and the results were very valuable . then some researches about the effect on the bsps due the existence of skull were studied as well as
第三章首先分别在二维圆形场域、三维球形模型上对颅内血肿动态成家方法进行了大量的仿真计算，研究了颅内血肿(水肿)体积、位置的变化对边界电位的影响及其规律；然后研究了颅骨存在对边界电位的影响；最后还研究了电阻抗成像中的三维效应。