点描的英文：
stipple

参考例句：

Texture a printing plate By lining and stippling it.
通过线画与点描使印花被具有吸引人的表面

In each one the exotic landscape or cloud form has been imaged as a kind of pointillistic nightmare
其中每一副奇特的地表图或云层形态图像都是一种用点描画法绘制成的难看的怪物。

stipple是什么意思：
n. 点刻法,点画,点彩
vt. 点刻,画点画,点彩

This is called a ruling and with very fine lines it gives the same appearance as a stipple
这称作网线。如采用极精细的网线，便可产生与网点相同的效果。

The virtual displacement method specifies that the sum of the shaded areas is equal to the sum of the stippled areas
虚位移法规定阴影面积之和等于点画面积之和。