reverse current
| reverse current
| reverse current | |
| earth.sc. tech. | takavirta; vastavirta |
| reverse current | |
| earth.sc. tech. | takavirta; vastavirta |
| |||
| takavirta; vastavirta | |||
| estosuuntavirta | |||
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reverse current : 24 phrases in 5 subjects |
| Astronautics | 2 |
| Chemistry | 4 |
| Earth sciences | 3 |
| Electronics | 14 |
| Mechanic engineering | 1 |