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| Trennverfahren n (канализации) | |||
| Parallelsystem n (канализации) | |||
| Trennsystem n | |||
| Trennsystem n (канализации) | |||
| Parallelsystem n | |||
| раздельная система: 24 phrases in 15 subjects |
| Accounting | 1 |
| Automobiles | 1 |
| Business | 2 |
| Construction | 7 |
| Electronics | 1 |
| Environment | 1 |
| General | 1 |
| Hydrography | 1 |
| Hydrology | 2 |
| International Monetary Fund | 1 |
| Military | 1 |
| Missiles | 1 |
| Oil / petroleum | 1 |
| Sports | 1 |
| Water supply | 2 |