环面

Traditional form:

環面

Pinyin (reading):

huánmiàn

Definitions:

• ring surface
• annulus
• torus (math.)

Characters:

• 环 - bracelet, ring; to surround, to loop
• 面 - face; surface, side; plane, dimension

Traditional characters:

• 環 - bracelet, ring; to surround, to loop
• 面 - face; surface, side; plane, dimension