The features of shock wave can be analyzed qualitatively in the velocity plane for a special perturbed gravitation which is used to simulate the self-gravitation of interstellar gas.
对一种特定的扰动引力场模拟气体自引力，可以在速度平面上定性分析激波解的特性。
Take the pipe as an isolator, under the effect of the external load and the mid-plane gravitation mentioned above, the displacement, the internal force and the internal moment can be worked out.
将管道作为隔离体，在外载荷及前述中面应力的影响下，求位移、内力、内力矩。
Take the pipe as an isolator, under the effect of the external load and the mid-plane gravitation mentioned above, the displacement, the internal force and the internal moment can be worked out.
将管道作为隔离体，在外载荷及前述中面应力的影响下，求位移、内力、内力矩。
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