reference-ground
| plane
| reference ground | |
| el.mach. | referensjord |
| plane | |
| agric. | hyvel |
| forestr. | hyvla |
| met. | kippa |
| scient. el. | plan |
| |||
| referensjord | |||
|
reference-ground : 2 phrases in 2 subjects |
| Magnetics | 1 |
| Transport | 1 |