A curve of a real brain shape is simulated with the curve-fitting methods and EIT in the brain is finished with finite-element methods and Equipotential Lines Back-Projection algorithm.
方法：利用曲线拟合方法模拟大脑外形曲线，借助有限元方法和等位线反投影算法完成脑eit仿真成像。
The symplectic preservation of the finite difference scheme is considered, however, the projection operation onto the constraint manifold still brings problems.
虽然已经注意差分的保辛，但沿切面积分再投影，仍带来许多问题。
The symplectic preservation of the finite difference scheme is considered, however, the projection operation onto the constraint manifold still brings problems.
虽然已经注意差分的保辛，但沿切面积分再投影，仍带来许多问题。
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