convex

凸的、凸面的、外凸的

The lens has a convex surface that bends light inward.

這片鏡片有凸面，能把光線向內折射。

凸的數學

A convex set contains every line segment between its points.

凸集包含其中任兩點之間的所有線段。

凸面、凸形少用

The mirror's gentle convex made distant objects look smaller.

鏡子微微的凸面讓遠處的物體看起來變小了。