| |||
| nicht Null | |||
| ungleich Null | |||
|
non-zero : 30 phrases in 13 subjects |
| Artificial intelligence | 1 |
| Automated equipment | 2 |
| Communications | 3 |
| Computers | 1 |
| Earth sciences | 1 |
| Electronics | 5 |
| General | 1 |
| Information technology | 10 |
| Life sciences | 1 |
| Marketing | 1 |
| Microelectronics | 1 |
| Optics branch of physics | 1 |
| Technology | 2 |