constraint n. 1.强迫,拘束。 2.约束,压抑,拘泥。 3.强制力。 4.紧张感[状态]。 by constraint 勉强,强迫。 feel constraint觉得局促不安,感受压迫。 show constraint显得局促。 under [in] constraint 被迫,不得不;被束缚着。
controlling constraint checking by bulk import operations 通过大容量导入操作控制约束检查
controlling constraints, identities, and triggers with not for replication 使用notforreplication来控制约束、标识和触发器
5 . the optimal control problems governed by the navier-stokes and a system of parabolic equations with state and control constraints are studies respectively . firstly, the existence of the optimal 5、分别讨论由navier-stokes方程和抛物型方程组描述的、具有状态与控制约束的最优控制问题。
Then, the dynamical programming equations and their associated boundary and final time conditions for the problems of maximization of reliability and of maximization of mean first-passage time are formulated . the optimal control laws are " bang-bang " controls which are derived from the dynamical programming equations and the control constraints 然后利用随机平均法及随机动态规划原理导出了以最大可靠性为目标的随机最优控制策略,说明了当控制力为有界函数时,随机最优控制即是bang-bang控制。