| 缩写 | 全称 | 中文释义 |
|---|---|---|
| ORA | Ontario Racing Association | 安大略赛车协会 |
| ORA | Oral Research Abstracts | 口头研究摘要 |
| ORA | Office Of Resource Assistance | 资源援助办公室 |
| ORA | Oscillator Rectifier and Amplifier | 振荡器整流器和放大器 |
| ORA | Orphans Refugees And Aid | 孤儿、难民和援助 |
| ORA | Open Records Act | 公开记录法 |
| ORA | Organization for the Resolution of Agunot | 阿古诺决议组织 |
| ORA | Oceans Reefs And Aquariums | 海洋礁和水族馆 |
| ORA | Oberhof Ruhpolding and Antholz | 奥伯霍夫鲁波尔丁和安霍尔茨 |
| ORA | Outer Rhabdomeres Absent | 外横纹肌缺失 |