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| wall buildup (накипь и др. soa.iya) | |||
| отложения на стенках: 20 phrases in 12 subjects |
| Biotechnology | 2 |
| Geology | 1 |
| Hydraulic engineering | 1 |
| Makarov | 1 |
| Metallurgy | 1 |
| Military | 1 |
| Oil / petroleum | 3 |
| Oil and gas technology | 1 |
| Oilfields | 2 |
| Technology | 3 |
| Textile industry | 2 |
| Weapons and gunsmithing | 2 |