1、a frustum formed from a cone
用圓錐體做的平截頭體。

2、a frustum formed from a pyramid
用棱錐做的平截頭體。

3、A good organizational hierarchy can speed frustum and occlusion culling.
一個(gè)好的結(jié)構(gòu)可以加快視錐剔除和遮擋篩選。

4、The forming principle of frustum cone-like cup is studied.
研究了圓臺(tái)形紙杯（容器）的成型原理。

frustum翻譯