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- 环Znresidue class ring Zn
- 环Zn上圆锥曲线Conic curve over Z.
- 环loop
- 网络中基于环Zn上椭圆曲线和RSA的密钥管理Key management based on elliptic curves over the ring Zn and RSA in ad hoc networks
- 环Zn上的圆锥曲线conic curve over Z.
- 环Zn上圆锥曲线的盲签名在电子现金中的应用Applications of conic curves blind signature over Zn in E-cash
- 环Zn上广义圆锥曲线和公钥密码体系The generalized conic curves over Zn and Public-Key cryptosystem
- 环比link relative ratio
- 圆环traffic circle
- 环的annular
- 环氧epoxy
- 环氧乙烷epoxy ethane
- 环己hexanaphthene
- 外环outer ring
- 环保护ring protection
- 手环wrist strap
- 环岛rotary island; roundabout
- 卡环snap ring
- 内环inner belt
- 磁环magnetic ring
