quadrant

单词音标

quadrant音标[\'kwɒdrәnt]

汉语翻译

n. 四分之一圆, 象限, 象限仪

【医】 四分体, 象限

英语解释

名词 quadrant:

a quarter of the circumference of a circle

同义词：right angle

a quarter of the circumference of a circle

同义词：quarter-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

详细解释

quad.rant

n.Abbr. quad.（名词）缩写 quad.

Mathematics

【数学】

A circular arc of 90=; one fourth of the circumference of a circle.

九十度弧；圆周的四分之一

The plane area bounded by such an arc and two perpendicular radii.

四分之一圆，扇形体：由九十度弧与两条垂直的半径围成的平面图形

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

A machine part or other mechanical device that is shaped like a quarter circle.

扇形体：形状似四分之一圆圈的机器零件或其他机械设备

An early instrument for measuring altitude of celestial bodies, consisting of a 90= graduated arc with a movable radius for measuring angles.

象限仪：用来测量天体纬度的一种早期工具，由一个有90度刻度的圆弧和一个用来测量角度的可移动的半径构成

来源：

Middle English [quarter of a day]

中古英语 [一天的四分之一]

from Latin quadr3ns quadrant- [a fourth part] * see k wetwer-

源自 拉丁语 quadr3ns quadrant- [第四部分] *参见 k wetwer-