实验结果表明：此种吸波体具有良好的电磁性能。

The results indicate that the chiral microwave absorber gets a good performance.

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地震波是通过地表传播的波体，通常是由地壳震动或爆炸引起的。

Seismic waves are waves that travel through the Earth, most often as the result of a tectonic earthquake, sometimes from an explosion.

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波体在传播途中变形，则有加速项或惯性力，内摩阻力等于惯性力。

If the flood wave is deformed on its way of propagation, there exists acceleration term or inertia force that equals to internal friction.

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