1. A compression wave in decelerating flow steepens.

2. In these equations, the compression wave propagation and the transverse inertia effect were taken into consideration.

3. The incident compression wave transmitted by the Hopkinson bar into the specimen is reflected as a tensile one causing spalling.

4. When high-speed train entering tunnel, compression wave and micro-pressure wave will be created, which will result in the pressure fluctuation in carriages and noises at the tunnel exit.

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5. To decrease the effect of compression wave, the numerical simulation of a three-dimensional viscous flow induced by a high-speed train entering tunnels with a shaft was made.

6. The research discovers that compression wave quality factor of the sands in desert surface increases as the buried depth and the compression wave velocity's increase.

7. When a high-speed train enters a tunnel, a compression wave is formed ahead of the train which propagates along the tunnel at a nearly sonic speed.

8. The supplementary restraint equation at the compression wave front is obtained by use of the second critical condition.

9. The finite element numerical method was used to study the dynamic buckling of cylindrical shells under elastic compression wave.

10. The finite element character-value method is used to study the dynamic buckling of bars under elastic compression wave.

11. Vector analysis and shock wave theory are applied to the initial phase during which the contact periphery expands more quickly than the compression wave fronts in the droplet.

12. The criterion of energy transformation and conservation are used to derive the supplementary restraint condition of buckling deformation at the front of axial compression wave.