3) first quadrant
第一象限
4) first angle projection method
第一象限法
5) two-dimensional quadrant system
二维象限
1.
The form of two-dimensional quadrant system was as fol-lows:increase rate of storage profit(Ri)was designed as Y-coordinate,and market possession rate(Rs)as X-coordinate,expectation value of profit and market possession rate as grid origin.
以微型节能保鲜冷库开发为标的,以保鲜增值(利润)率Ri为纵坐标,市场占有率Rs为横坐标,利润和市场占有率的期望值为原点,研究开发微型节能保鲜冷库的二维象限决策法推广技术。
6) two-quadrant
二象限的
补充资料：单象限丘克电路
一种升／降压型直流变换电路（见单象限直流变换电路）。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条