要提高泛型代码的有效性，可以指定一个上限（或下限），而不是指定某个泛型类型参数的精确类型。 这可以使用有界通配符来实现，它的形式为 “?
To increase the usefulness of our generic code, instead of specifying the exact type of a generic type parameter, we can specify an upper (or lower) bound instead.
该模型具有数值可加型标准综合函数所具有的性质，即单调性、有界性和幂等性。
This model occupies some properties of additive standard synthesis function, namely, monotonic, limited and idempotent.
本文研究一类不稳定型高阶中立型微分方程正解的存在性与有界振动。
In this paper, we study the existence of positive solutions and the bounded oscillation of a class of high order unstable type neutral differential equations.
本文研究一类不稳定型二阶中立型微分方程正解的存在性与有界振动。
In this paper, we study the existence of positive solutions and the bounded oscillation of a class of second order unstable type neutral differential equations.
本文考虑一类对角型蜕化椭圆组，证明了广义解的整体有界性。
In this paper, We consider a class of degenerate elliptic systems in diagonal form and prove the global boundedness for generalized solutions.
利用半群理论等方法讨论了半线性抛物型边界控制系统解映射的有界性 。
In this paper, the compactness of solution map for parabloic system with a nonlinear boundary control using semigroup theory is obtained.
利用半群理论等方法讨论了半线性抛物型边界控制系统解映射的有界性 。
In this paper, the compactness of solution map for parabloic system with a nonlinear boundary control using semigroup theory is obtained.
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