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单词 象限
释义 〔quadrant〕Any of the four areas into which a plane is divided by the reference axes in a Cartesian coordinate system, designatedfirst, second, third, and fourth, counting counterclockwise from the area in which both coordinates are positive. 象限:在笛卡尔坐标系中,被坐标轴分开的平面中的四个区域的任一个,命名为第一,第二,第三 和 第四, 从此象限逆时针计算坐标为正数 〔quarter〕One of the four major divisions of the horizon as determined by the four major points of the compass.象限:由罗盘上四个主要指针确定的四个主要地平方位中的一个
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