求翻译：不仅如此，． 指令性计划因集权体制领导而容易贯彻执行，保证按预期计划目标实现国民经济发展的总体战略建立比较合理的国民经济体系是什么意思？

Not only that, Mandatory plans and easy to implement due to the leadership of the totalitarian system, to ensure that program objectives is expected to achieve the overall national economic development strategy to establish a national economic system

Not only that, but, by order of totalitarian system leadership program and easily implemented, and is expected to ensure that plan implementation of the goals of the overall national economic development strategy for a more reasonable national economy

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Not only that, but. Mandatory plans easier to implement due to centralization system leading to ensure overall strategic plan objectives of development of the national economy as expected a more rational system of national economy

Not only that. The direct plan easy to carry out because of the centralization system leadership, guaranteed realizes the national economy development overall strategy establishment quite reasonable national economic system according to the anticipated plan goal