求解了厚圆板在周边固支和简支条件下的对称与反对称的自由振动问题。
The symmetric and unti -symmetric free vibration problems of thick plate with the fixed and simple support edge conditions are solved.
本文利用群论方法，给出了处理对称与反对称结构电磁散射问题的统一方法和理论依据。
An unified approach based on the group theory was presented to deal with the EM scattering from symmetric and anti-symmetric structures.
中子对空间反对称的结构与对称性的结构对截面的贡献处于同等重要的地位。
The antisymmetric space structure of the neutron pair participated in the process is as the important as symmetric one.
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