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| преодоление льда | |||
| ледокольное сопровождение (arctia.fi masizonenko) | |||
| icebreaking: 40 phrases in 10 subjects |
| General | 1 |
| Makarov | 1 |
| Maritime law & Law of the Sea | 1 |
| Military | 1 |
| Nautical | 17 |
| Navy | 2 |
| Oceanography & oceanology | 1 |
| Oil and gas | 8 |
| Sakhalin | 1 |
| Technology | 7 |