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Planetary Defense Systems stresses
mil., abbr.	PDS
Planetary Defense System
abbr., astronaut., mil.	PDF; PDS (Air Force 2025 concept)

Planetary : 815 phrases in 72 subjects

Acoustics	2
Advertising	1
Aerohydrodynamics	1
Agriculture	1
Antennas and waveguides	1
Armored vehicles	10
Artillery	1
Astronautics	103
Astronomy	64
Astrophysics	5
Automated equipment	42
Automobiles	19
Aviation	16
Aviation medicine	9
Cables and cable production	2
Chemistry	4
Construction	12
Cooking	1
Drilling	1
Ecology	6
Electronics	5
Foreign policy	1
Gear train	5
General	11
Geochemistry	1
Geography	2
Geology	2
Geophysics	27
Ground forces Army	1
Helicopters	1
Industry	2
International relations	77
Librarianship	3
Machine components	1
Machinery and mechanisms	1
Makarov	31
Mathematics	1
Mechanic engineering	5
Mechanics	3
Metallurgy	4
Meteorology	1
Military	18
Mining	3
Nanotechnology	7
Nautical	11
Navigation	2
Oceanography & oceanology	1
Oil / petroleum	4
Perfume	3
Physics	13
Pipelines	2
Plastics	1
Politics	3
Polygraphy	3
Polymers	4
Powder metallurgy	2
Production	1
Radioengineering	5
Rail transport	1
Robotics	2
Roll stock	1
Sakhalin	1
Silicate industry	2
Soviet	3
Space	24
Technology	179
Telecommunications	2
Textile industry	1
Thermal engineering	1
Thermodynamics	1
Transport	27
United Nations	1