This problem describes BCS pairing. It is very convenient to construct the mean field theory using the functional integral representation.
此问题描述BCS配对。利用泛函积分表象来建立平均场理论是十分方便的。
In Kirchhoff migration, this is done by using the Kirchhoff integral representation of a field at a given point as a (weighted) superposition of waves propagating from adjacent points and times.
克希霍夫偏移中，反传播的处理就是把特定点的波场克希霍夫积分表达式作为从邻近点在邻近时间传播来的波的(加权)叠加。
The integral representation for acoustic ray is constructed by the product of the generalized reflection-transmission coefficients corresponding to the specification of the generalized ray paths.
任意一条广义声线的积分表达式，则可根据每一条声线段的性质，由各反射界面上的广义反射、透射系数直接给出。
The integral representation for acoustic ray is constructed by the product of the generalized reflection-transmission coefficients corresponding to the specification of the generalized ray paths.
任意一条广义声线的积分表达式，则可根据每一条声线段的性质，由各反射界面上的广义反射、透射系数直接给出。
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