torus

/ˈtɔːrəs/ 6
a large convex moulding approximately semicircular in cross section, esp one used on the base of a classical column 环状半圆线脚装饰 (Also called tore)

noun [专属名词][植] 花托;圆环面;[解剖] 隆凸

And, of course, it bounds this disc, but inside of a torus.
显然,它界定了这个圆盘,但是这个圆盘在面包圈的内部。

torus 甜甜圈(形)
单词造句:
网友用“Torus”造句精选
So we take water from the torus and insert it back over the core. 我们从凸面将水取出,把它放回到核心的上方。
But you can also create a torus or sphere by extruding along a circular path. 但是还可以沿着圆形路径挤压来创建圆环体或球形。