просторові (радіо) хвилі; іоносферні (радіо)хвилі
electromagnetic waves
high-frequency sound waves
kilometric waves
decametric waves
decimetric waves
ground waves
hectometric waves
long waves
metric waves
middle waves
Prandtl relation for normal shock waves
short waves
space waves
diffraction task for electromagnetic waves
electric properties of object and propagation medium for electromagnetic waves
attack in waves
direction of waves, swells or seas
skylining (sky-lining)
sky cover
sky radiation
sky-wave communication
sky-wave communicator
sky cavalry
sky cavalry company (reconnaissance)
sky diving
sky diving raid
sky genie
sky glow
sky hook
sky line
sky lookout
sky mар