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| offenes offen arbeitendes Filter | |||
| offenes Filter | |||
| открытый фильтр: 10 phrases in 6 subjects |
| Chemistry | 2 |
| Construction | 1 |
| Energy industry | 1 |
| Food industry | 1 |
| Natural resourses and wildlife conservation | 3 |
| Water supply | 2 |
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| |||
| offenes offen arbeitendes Filter | |||
| offenes Filter | |||
| открытый фильтр: 10 phrases in 6 subjects |
| Chemistry | 2 |
| Construction | 1 |
| Energy industry | 1 |
| Food industry | 1 |
| Natural resourses and wildlife conservation | 3 |
| Water supply | 2 |