本文给出了有限基本解法中不可压源的远场近似，所得结果可直接用于计算。
The paper gives the, far-field approximations of incompressible sources used in finite elementary solutions. The results obtained can be directly applied to computation.
弦变线电流源之辐射电磁场强及功率密度在近场至远场球面上之变化。
The Variation of Radiated EM Intensity and Power Density on Spheres in Near and Far Field from Array of Time Harmonic Currents.
首先将点源函数展开为一个算符对平面波函数的运算，经过计算证明，如果将这个算符对参量阵远场解进行运算，得到的结果即为线源参量阵辐射场的解。
The sound fields of the parametric line array can be analysed by it. Firstly, the point-source function is expanded into an operator on a plane wave function.
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