As a result, reasonable and effective control of urban land-use floor area ratio is essential.

因此，合理而有效控制城市土地使用容积率是至关重要的。

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Also we can forecast the air spares demand by the order model, and use the air supply ratio land the capital ratio to evaluate the service quality of air supply system.

本文的特点在于利用数学方法来预测航材的需求，运用航材保障率和资金周转率来评价航材保障系统的服务质量。

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Now with the enhancement of urban planning management, the floor area ratio begins to play more and more vital role on intensive land use, urban planning and land appraisal and so on;

现在随着城市规划管理的加强，容积率对土地节约集约利用、城市规划、地价评估都起到越来越重要的作用。

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