Through researches on fuel characteristics of the engine, a new method for establishing dynamic 3-parameter-controlled optimal fuel-economy shifting schedule was presented.

通过对发动机燃油消耗特性的研究，提出一种较为简单的动态三参数最佳燃油经济性换挡规律制定方法。

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At the same time, urban diving cycles with different characteristics also influence the evaluation of fuel economy.

同时，具有不同特点的城市循环工况等也会直接影响整车经济性能的评价。

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For the nuclear power industry, due to characteristics of its own, its economy is quite different from that of the traditional fossil-fuel power.

核电产业由于其自身的若干特性，在经济性方面与传统的火力发电有着根本性的差别。

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With demand for large SUVs beginning to level off, automakers are finding new ways to blend roomy interiors with better fuel economy and driving characteristics.

CNN: Car shopping 2006: The inside track