- 环形山 huánxíngshān cratera crater or ring-shaped mountain; a distinctive geological formation found on the surface of the moon, Mars, or Mercury, usually caused by volcanic activity or meteor impacts
- 环形路 huánxínglù circular roadcircular road; ring road; circuit
- 环形公路 huánxínggōnglù ring roadring road; beltway; circular highway surrounding a city
- 环形结构 huánxíngjiégòu ring configurationA ring-shaped structure or arrangement, typically in technical or architectural contexts.