借由一个只有16英尺的回旋直径圆周，乐骋在掉头时，能造出一个荒谬地小的旋转空间。

With a turning circle of just 16 feet, Aveo can make a U-turn in a ridiculously small space.

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通过计算，研究了不同风口直径、风口长度和高炉风口焦炭不同粒度组成对高炉风口回旋区的径向长度、宽度、高度和体积的影响。

Influence of different tuyere diameter, length and coke particle sizes composition on radial length, width, height and volume in BF tuyere rotary region is studied by calculation.

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基于回旋区边界上力的平衡，并考虑理论燃烧温度和有效直径等的影响，建立了同类型竖炉风口回旋区的简化模型。

A simplified raceway model of the shaft furnace was build based on the force balance at the raceway border and by considering the influences of flame temperature and effective raceway diameter etc.

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