The optimal mathematical model of the double universal spindle must satisfy the constraints of strength, rigidity, vibration condition, stability and boundary condition.
双万向轴的优化数学模型必须满足强度、刚度、振动条件、稳定性及边界条件的约束。
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A “mighty mouse” with double the normal muscle strength has been created by scientists looking for ways to treat age-related diseases.