| |||
| 层 3 | |||
| OSI 参考模型; CCITTX.25 第三层; 网络层又称分组级; OSI 参考模型; CCITT X.25第三层 | |||
|
layer3 : 19 phrases in 12 subjects |
| Advertising | 1 |
| Automobiles | 1 |
| Computer networks | 3 |
| Electronic commerce | 1 |
| Electronics | 1 |
| Forestry | 1 |
| Information technology | 2 |
| Materials science | 1 |
| Multimedia | 2 |
| Polygraphy | 1 |
| Telecommunications | 2 |
| Wood processing | 3 |