只有当经济体所运用的内部制度与外部环境、非正式制度相互适应时，才会发挥其最优状态并产生经济效益。
Only when the economy by the use of internal systems and external environment, the informal system of mutual accommodation, the only play to their optimal state and generate economic benefits.
负荷预测在燃气系统规划和运行调度方面发挥的重要作用，具有明显的经济效益。
Gas load forecast has great influence on the planning, operation and control of gas system and has obvious economic benefit.
因此，我们必须深入探讨其产生的原因，在战略上、政策上努力遏制负效应，使外资发挥最大的经济效益。
Thus we should deeply probe into the causes of these problems and make the best economic benefit of foreign funds while curbing the side effects in terms of strategy and policy.
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