abstract system
| reference model
| abstract system abbr. | |
| space од. | 抽象系统 |
| reference model abbr. | |
| IT од. | 参考模型 |
| |||
| ★ 抽象系统 | |||
|
abstract system : 6 phrases in 5 subjects |
| Chemistry | 1 |
| Electronics | 1 |
| General | 2 |
| Mathematics | 1 |
| Telecommunications | 1 |