non-terminal
| class
| non-terminal | |
| avia. | 非终止 |
| class | |
| corp.gov. | 等级 |
| IT | 类 别; 分类 ，种类; 类程 |
| IT од. | 类 |
| math. | 组，类 |
| met. | 分类; 级; 分级 |
| tech. | 类型，种类 |
| |||
| 非终止 | |||
|
non-terminal : 41 phrases in 11 subjects |
| Agriculture | 2 |
| Artificial intelligence | 2 |
| Automobiles | 1 |
| Aviation | 3 |
| Computer networks | 2 |
| Electronics | 7 |
| Genetics | 1 |
| Information technology | 3 |
| Polymers | 1 |
| Technology | 12 |
| Telecommunications | 7 |