foci是什么意思

焦距,配光

1. The foci of the ellipse are located at the two ends of its major axis.
椭圆的焦点位于其长轴的两个端点。
2. The foci of the company's marketing strategy should be customer satisfaction and brand loyalty.
公司营销策略的焦点应该是顾客满意度和品牌忠诚度。

焦点；焦点（数学上的术语）；（复数形式）（focu的复数形式）