The solving multi-phase decision includes defining, decision-making, state variable, ensuring state transfer equation, solving index function and target optimal function.

其求解多阶段决策过程包括：定义阶段、决策及状态变量，确定状态转移方程，求解指标函数及目标最优值函数。

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Firstly, an optimal equation which can determine optimal supervisor is established by introducing the definitions of cost function, objective function and optimal function.

首先，通过引入费用函数、目标函数以及最优函数的定义，建立了可以确定最优监控器的最优方程。

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With the guiding of the system idea and the key elements, main sub - systems and optimal structure can DE identified. Finally, the system of forest certification will show its optimal function.

在系统思想指导下，找出我国森林认证的关键要素、主要子系统和最优结构，才能发挥森林认证体系的最佳功能。

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"Every cancer survivor should have the opportunity to heal as well as possible and function at optimal level whether their cancer is cured, in remission or they live with cancer as a chronic disease, " Dr. Silver says.

WSJ: Rehab for Cancer Survivors

They believe that sleep deprivation or sleep disturbances may affect the immune system's ability to function at an optimal level.

CNN: Study: Can more sleep help fight off colds?

Like chronically ill patients, these businesses function at less than optimal performance.

FORBES: Written by John H. Hammergren