ConnectionLess Service
| Function
| connectionless service abbr. | |
| IT | 无连接服务 |
| IT од. | 无连接业务 |
| function abbr. | |
| gen. | 运行; 工作 |
| hydroel.st. | 作用 |
| interntl.trade. | 效用; 职能 |
| light. | 功能，用途 |
| math. | 运算 |
| met. | 功用; 用途 |
| |||
| 无连接服务; ★ 无连接业务 | |||
| 无连接型业务分组交换业务,如 datagram | |||
|
ConnectionLess Service : 18 phrases in 4 subjects |
| Computer networks | 2 |
| Electronics | 5 |
| Information technology | 6 |
| Telecommunications | 5 |