quadrant
n. 四分之一圆周；象限；象限仪
近义词：quarter-circle，
英英释义
Noun
- a quarter of the circumference of a circle
- any of the four areas into which a plane is divided by two orthogonal coordinate axes
- the area enclosed by two perpendicular radii of a circle
- a measuring instrument for measuring altitude of heavenly bodies
例句
用作名词(n.)
- A symbol appears in an upper quadrant of the screen.一个符号出现在屏幕上端的四分圆的地方。
- The line AB lies in the second quadrant.线段AB是处在第二象限中。