网状凹凸结构的英文：
convex-concave reticulation structure

Draws a single, convex polygon.
画一个凸多边形。

There is a large convex mirror above the fireplace.
壁炉上方有一面大凸面镜。

On his map, the surface of the earth is convex.
在他的地图上，地球表面呈圆凸状。

The mirror is concave.
镜子呈凹面。

The graph of a concave function is always below its tangent.
一个凹函数的图象总在它的切线的下方。

A depression similar to that in a shallow concave container for food
凹形，凹面与浅的凹型盛食物的容器相似的凹处

Reticulation: The ink contracted into a pattern of fine beads, often occurred when a wet film of ink is printed on to a previously printed ink film which has dried to a smooth glossy finish or due to complete incompatibility with the substrate.
网状故障:当湿墨叠印于平滑光亮的干燥墨层上时，或油墨与承印物料不能相容时，常常发生的油墨起成小泡，形成网状图案的情况。