名词
中文翻译：向量
同义词：
['direction', 'direction vector', 'directional vector']
例句：
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1.The position of the object is determined by its vector.
物体的位置由其向量确定。
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2.The computer program uses a vector to calculate the distance between two points.
计算机程序使用一个向量来计算两点之间的距离。
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3. The physicist used a vector to explain the motion of objects in space.
物理学家使用一个向量来解释物体在空间的运动。