象限的英文：
quadrant

The line AB lies in the second quadrant
线段AB是处在第二象限中。

The opposite hand should gently palpate the breast circumferentially with the fingertips.
用对侧手指尖依照乳腺象限顺序转轻按摩乳腺各个部位。

A virgin material can be "started" from point 0 into either the first or the third quadrant
一个没有用过的材料可以从0点“开始”进入第一或第三象限。

deck sash quadrant
顶棚窗扇形板

Correction of disturbances is made absorbing or giving active andor reactive power in the four quadrants.
通过在3600范围内吸收或发出有功功率就可克服扰动。

The cells of the quadrant in turn become partitioned to form the eight-celled embryo
四分体细胞于是分裂形成八细胞胚。

One quadrant of a circle contains all possible values of Zxy
圆的四分之一包括了所在可能的Zxy值。

The patient was found in lateral decubitus position and groaning. Tender over the epigastric especially the right upper quadrant.
病人侧卧位并呻吟。特别是在右上腹有压痛。