fixed-turbine
| engine
| fixed turbine | |
| mech.eng. | fast turbin |
| engine | |
| econ. | motor |
| environ. | motor |
| forestr. | motor |
| |||
| fast turbin | |||
|
fixed-turbine : 4 phrases in 2 subjects |
| General | 1 |
| Mechanic engineering | 3 |