| |||
| DC generation; DC generation system; d.c.generation; d.c.generation system; direct current generation; direct current generation system | |||
|
generation continue : 5 phrases in 3 subjects |
| Earth sciences | 3 |
| Gear train | 1 |
| Transport | 1 |
| |||
| DC generation; DC generation system; d.c.generation; d.c.generation system; direct current generation; direct current generation system | |||
|
generation continue : 5 phrases in 3 subjects |
| Earth sciences | 3 |
| Gear train | 1 |
| Transport | 1 |