它还十分适用于存在初应力的模型材料光弹性分析问题。
It is also applicable to the problem of photo orthotropic elastic analysis for the model materials with residual stresses.
本文对弹性波动方程的解进行了探讨，给出了初边值内题解的解析表达式。
A solution of elastic wave equation: is studied in this paper. An analytic expression of solutions of the initial boundary value-problems is given.
研究表明，采空区矸石弹性模数、支架刚度及初阻力是影响顶板动态的主要因素。
The study indicates that elastic modulus of the fallen rock in the goaf, the rigidity and setting load of support are the major factors that affect roof behaviour.
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