Quadrant
01
象限仪, 用于测量天体高度的测量仪器
a measuring instrument for measuring altitude of heavenly bodies
02
象限, 四分之一圆
one-fourth of a circle, formed by two perpendicular radii and the connecting arc
例子
Each quadrant of a circle represents one-fourth of the circle's area.
圆的每个象限代表圆的面积的四分之一。
The angle of a quadrant is 90 degrees because it is formed by two perpendicular radii.
一个象限的角度是90度，因为它是由两个垂直的半径形成的。
03
象限, 四分仪
any of the four areas into which a plane is divided by two orthogonal coordinate axes
04
象限, 四分之一圆
a quarter of the circumference of a circle
