 |
Found in phrases
| 2,2'-???????-4,4: 77 phrases in 12 subjects |
| Chemistry | 46 |
| Communications | 1 |
| Economy | 2 |
| Environment | 1 |
| Food industry | 13 |
| Health care | 6 |
| Law | 1 |
| Life sciences | 1 |
| Physical sciences | 1 |
| Social science | 3 |
| Technology | 1 |
| Transport | 1 |