求翻译：生态经济系统可持续发展的重要前提是子系统之间良性耦合，而确保耦合后系统运行顺畅，效益增加等目标实现又需要合理构建耦合机制。是什么意思？

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Ecological Economic System is an important prerequisite for sustainable development between sub-system coupling virtuous couplers, and ensure that the system is running smoothly, and increase the effectiveness and achievement of the goals, such as building a coupling mechanism needs to be reasonable

The ecology economical system sustainable development important premise is between the subsystem the benign coupling, after but guarantees the coupling the system movement to be smooth, goal realizations and so on benefit increase needs to construct the coupling mechanism reasonably.

Important precondition for sustainable development of eco-economic system is benign coupling between subsystems, and ensure coupling system running smoothly, and benefit increases goal achievement and building coupling mechanism.

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