得到了大扰动情况下非线性陀螺系统的稳定准则。
The stability criteria for nonlinear gyroscopic systems is obtained in the case of large disturbance.
结果表明：除了临界情况以外，线性系统的稳定准则也同样适用于非线性系统。
The results show that the stability criteria for linear systems is also valid to nonlinear systems except the critical case.
针对金属材料在较高应力下没有蠕变稳定阶段的现象，提出了金属材料高低应力值的判定准则并根据高低应力的不同特点推导了不同的耦合损伤本构模型。
It has been find that there is no the second stage of creep when material under the condition of higher stress. Then judgment criterion has been proposed to deal with that phenomenon.
针对金属材料在较高应力下没有蠕变稳定阶段的现象，提出了金属材料高低应力值的判定准则并根据高低应力的不同特点推导了不同的耦合损伤本构模型。
It has been find that there is no the second stage of creep when material under the condition of higher stress. Then judgment criterion has been proposed to deal with that phenomenon.
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