An unusual high speed test was conducted on the Loop Track under the conditions of small radius, big superelevation and large deficiency of superelevation.
环行道的高速试验是在小半径，大超高，大欠超高下进行的，有着其特殊意义。
First, the concept of neighborhood is introduced, and two new algorithm parameters of expansion radius and mutation radius are defined to construct a small neighborhood and a large neighborhood.
首先引入了邻域概念，并通过定义扩展半径和突变半径两个新算法参数而构造了较小和较大两个邻域。
The strong points of the compound gear pump are balanced hydraulic pressure of radius, uniform of flow rate, small volume, large displacement and low noise and so on.
它具有径向液压力平衡、流量均匀性好、噪声低、排量大、体积小等优点。
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