 |
| |||
| petroleum gum | |||
| gum: 14 phrases in 7 subjects |
| Agriculture | 1 |
| Biology | 2 |
| Chemistry | 1 |
| Food industry | 1 |
| Health care | 1 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 5 |
|
| |||
| petroleum gum | |||
| gum: 14 phrases in 7 subjects |
| Agriculture | 1 |
| Biology | 2 |
| Chemistry | 1 |
| Food industry | 1 |
| Health care | 1 |
| Natural resourses and wildlife conservation | 3 |
| Natural sciences | 5 |