此中心的引力范围可用心理距离与地理距离相结合来度量。

To describe the attractive range of short distance tour center the indexes that integrating psychological distance and geographical distance are used.

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大部分彗星主要由冰块构成，环绕太阳系黑暗的边缘运行，几乎超出了太阳的引力范围。

Composed primarily of ices, most comets circle the dark fringes of the solar system, barely within the sun's gravitational grasp.

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首先，我们对几何活动轮廊模型中吸引力场进行正则化，扩大目标轮廊边缘对的轮廊曲线的吸引力范围，增加轮廊曲线搜寻凹轮廊的能力。

First, we regularize the attraction force field in the geometric active contour model to extend the capture range of the object boundaries, and improve the ability of convergence to the concavities.

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