| 缩写 | 全称 | 中文释义 |
|---|---|---|
| IO | Inside Outsider | 内部局外人 |
| IO | Immediate Occupancy | 直接居住极限状态 |
| I&O | Inlet And Outlet | 进出口 |
| IO | Inside Outside | 内外 |
| IO | Infinitely Often | 无限频繁 |
| IO | Imperial Outpost | 帝国前哨 |
| IO | Intestinal Obstruction | 肠梗阻 |
| IO | Information Operations | 信息作战 |
| IO | Inspection Opening | 检查口 |
| I&O | Intake and Output | 进气和排气 |