为了达到非常经济的驾驶，建议您仅将汽车加速到不需要使用脚制动装置来降低车速的程度。

For particularly economical driving you are advised to accelerate only to a degree where it is not necessary to reduce the speed using the foot brake.

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为了改善汽车动力性、经济性、排污特性以及乘坐舒适性，笔者应用系统工程的方法对汽车车速控制系统作了初步探讨。

An automobile speed control system is primarily approached by means of system engineering method in order to improve the power performance, fuel economy and pollutant emissions of automobiles.

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