导出了非均匀等离子体中线性波的色散方程，并在一些特殊情况下进行了讨论。
The general dispersion relation of the linear waves and its reduced form in certain particular eases are obtained.
本文以较一般的方式讨论了自引力介质中线性波的传播和演化。
Propagation and evolution of linear waves in the self-gravitational medium are discussed in a comparatively general way.
为解决现有电力载波通信系统中线路阻波器、结合滤波器的性能测试方法中存在的问题，提出了一种集自动测试、高速采样和数据处理于一体的新型智能式测试系统方案。
The measurement and examination of wave trap coil and coupling filter used for power line carrier communication system are an important part to ensure the electric power system operating normally.
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