The method of reciprocal theorem is extended to find common probable solutions of plane problems of elasticity of the rectangular plate with various edge conditions.
用推广功的互等定理法，给出了求解复杂边界条件矩形板的弹性力学平面问题的一般近似解，并给出了计算实。
By use of the common formula for solving the time variations of the crustal density, the approximative plane formula is derived and its numerical calculation method is given.
采用求解地壳单层密度变化的一般公式，导出其平面近似公式并给出了相应的数值计算方法。
Applications of plane wave migration method and their effectiveness on common shot gathers and common offset gathers are also presented.
给出了平面波偏移方法在共炮点道集和共偏移距道集数据上的应用以及效果评价。
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