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| Process Sewer System (Yeldar Azanbayev) | |||
| industrial sewage (англ. термин взят из Encyclopædia Britannica Alex_Odeychuk); industrial sewage system (Alex_Odeychuk) | |||
| промышленная канализация: 24 phrases in 6 subjects |
| Ecology | 2 |
| Gas processing plants | 1 |
| Molikpaq | 17 |
| Public utilities | 1 |
| Tengiz | 2 |
| Water supply | 1 |