就极限承载能力而言，在超内水压力情况下，双层衬砌结构有较大的安全余度。
Under super inner hydraulic pressure, the liner still has large safety redundancy from the point view of limit loading capability.
在两个参数平面上研究了系统在余维二分叉点附近的不同区域内平衡点和极限环的稳定性及其个数。
The stabilities of the equilibrium points and limit cycles in different regions of two parameter plane are studied.
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