"Annulus" • Chinese-English Dictionary
| 环形 | huán xíng | ring-shaped / (math.) annulus |  |
| 圆环 | yuán huán | ring (any circular object) / (math.) annulus / (Tw) traffic circle / rotary | |
| 环面 | huán miàn | ring surface / annulus / torus (math.) | |
| 璧 |  bì | jade annulus |  |
| 完璧归赵 | wán bì guī Zhào | lit. to return the jade annulus to Zhao (idiom) / fig. to return something intact to its rightful owner | |
