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When circumjacent load makes the lowest natural frequency zero, critical load is obtained.
当周边面力使夹层圆板的最低固有频率为零时，就可获得临界载荷的值。
youdao
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When circumjacent load makes the lowest natural frequency zero, critical load is obtained.
当周边面力使夹层圆板的最低固有频率为零时，就可获得临界载荷的值。
youdao