n.象限，四分之一圆(或圆周)，象限仪，四分仪(常用于测量海上方位或观看星辰)

原形：quadrant复数：quadrants

The ship was sailing in the first quadrant of the Atlantic Ocean.
这艘船正在大西洋的第一象限航行。
The angle formed by the radius and the x-axis defines which quadrant the point lies in.
半径与x轴所形成的角定义了该点位于哪个象限。
In a Cartesian coordinate system, the origin divides each axis into two quadrants.
在笛卡尔坐标系统中，原点将每条轴分为两个象限。
The function is negative in the second and third quadrants.
该函数在第二和第三象限中为负。
The sunrise was painting the eastern quadrant of the sky with hues of orange and pink.
日出染红了东方的天空，呈现出橙色和粉红色的色调。
The city's main financial district is located in the northeast quadrant.
这座城市的主金融区位于东北象限。
The pilot had to adjust the plane's trajectory to avoid entering restricted airspace in Quadrant 4.
飞行员必须调整飞机的航向，以避开第四象限的限制空域。
The architect designed the building with four quadrants, each serving a different purpose.
建筑师设计了这座建筑，分为四个象限，每个象限都有不同的用途。
The surveyor marked the property boundaries using a compass and identified the quadrants where the boundaries intersect.
测量员使用指南针标定了财产边界，并确定了边界相交的象限。
In a Cartesian graph, the coordinates (x, y) determine which quadrant the point (x, y) resides in.
在笛卡尔坐标图中，坐标(x, y)决定了点(x, y)所在的象限。