| 缩写 | 全称 | 中文释义 |
|---|---|---|
| C1 | First Cervical Vertebra | 第一颈椎 |
| C-1 | first cervical vertebrum | 第一颈椎 |
| C1 | Cervical vertebrae (spine eg. C7 = seventh cervical vertebra) | 颈椎(如:C7=第七颈椎) |
| C-1 | 1st Cervical Vertebra | 第一颈椎 |
| C1,D1,B2 VISA | C1 Transit, D1 Seamen and B2 Visitor visa | C1过境、D1海员和B2访客签证 |