...用Rayleigh-Ritz法求解，由于所提试解函数值(trial solution function)未能满足内圆的自然边界条件(natural boundary condition)，虽然最后分析结果大致良好，但经本文分析结果与ABAQUS结果比较，其准确性尚有不足之处。
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...用Rayleigh-Ritz法求解，由于所提试解函数值(trial solution function)未能满足内圆的自然边界条件(natural boundary condition)，虽然最后分析结果大致良好，但经本文分析结果与ABAQUS结果比较，其准确性尚有不足之处。
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The effect of imposing natural boundary condition as constraints is considered and it is shown by a plate bending problem that this effect is quite superficial.
文中对自然边界条件作为约束条件的影响给予了考虑，并以板的弯曲问题为例说明影响极微。
The characteristic of this model is only to know basic and natural boundary condition, then the stream function and flow velocity required on the boundary are obtained.
这一模型的特点只需要知道边界上的基本边界条件和自然边界条件，就可以得到边界上所需要求的流函数和水流速度；
The boundary condition differences between natural power and artificial driven fracturing in hydraulic and hydroelectric engineering are presented.
分析了水利水电等工程中的水力劈裂与人工致裂边界条件的不同。
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