 |
| |||
| surface-active agent (Andrey Truhachev); surface active agent; surfactant | |||
| active agent (Flotation) | |||
| surface active-agent | |||
| detergent | |||
| oberflächenaktiver Stoff: 8 phrases in 2 subjects |
| Environment | 3 |
| Natural resourses and wildlife conservation | 5 |
|
| |||
| surface-active agent (Andrey Truhachev); surface active agent; surfactant | |||
| active agent (Flotation) | |||
| surface active-agent | |||
| detergent | |||
| oberflächenaktiver Stoff: 8 phrases in 2 subjects |
| Environment | 3 |
| Natural resourses and wildlife conservation | 5 |