降下 – English translation

Agriculture	41
Air defense	8
Anatomy	1
Animal husbandry	10
Archery	1
Architecture	10
Artificial intelligence	10
Astronautics	1
Athletics	1
Automobiles	47
Aviation	125
Baseball	1
Biology	1
Biophysics	1
Bridge construction	18
Business	51
Chemistry	6
Commerce	12
Computers	2
Construction	8
Corporate governance	2
Cryptography	1
Dancing	2
Demography	5
Desert science	23
Drilling	23
Earth sciences	3
Ecology	6
Economy	90
Electric machinery	17
Electronics	63
Engineering geology	65
Environment	1
Exhibitions	4
Explosives and Explosive Ordnance Disposal	4
Figure skating	1
Finances	12
General	119
Genetics	5
Geology	4
Geophysics	1
Golf	2
Heavy equipment vehicles	2
Hunting	1
Hydroelectric power stations	40
Information technology	6
International Monetary Fund	9
International trade	17
Jet engines	1
Judo	1
Labor law	1
Life sciences	1
Lighting other than cinema	1
Marketing	3
Mathematics	3
Metallurgy	71
Military	1
Mining	8
Missiles	1
Mountaineering	40
Nautical	5
Nuclear and fusion power	1
Nuclear physics	1
Nursing	2
Obsolete / dated	1
Oil / petroleum	38
Oil and gas	1
Otorhinolaryngology	2
Outdoor activities and extreme sports	3
Piezoelectric crystals	1
Planning	1
Plastics	6
Polymers	3
Project management	10
Racing and motorsport	1
Rail transport	1
Refrigeration	16
Reliability	1
Reproductive biology	2
Scuba diving	1
Securities	40
Semiconductors	1
Shipbuilding	4
Skiing	5
Skydiving	26
Space	78
Sports	15
Statistics	1
Surgery	4
Swimming	1
Table tennis	2
Technology	409
Telecommunications	8
Textile industry	8
Transport	3
United Nations	5
Water resources	3
Weightlifting	8
Welding	1
Wind Energy	19