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质数 zhìshù
tech.	prime; simple quantity
telecom.	prime number
质〔素〕数
gen.	prime
IT	prime number

质 数: 836 phrases in 80 subjects

Advertising	1
Agriculture	12
Air defense	2
Animal husbandry	14
Architecture	2
Automobiles	9
Aviation	47
Bridge construction	2
Business	17
Chemistry	15
China	1
Commerce	3
Communications	1
Company name	1
Construction	5
Corporate governance	2
Cosmetics and cosmetology	2
Cryptography	6
Desert science	4
Drilling	1
Earth sciences	48
Ecology	8
Economy	12
Electric machinery	9
Electronics	51
Engineering geology	9
Environment	4
Explosives and Explosive Ordnance Disposal	14
Fishery fishing industry	1
Food service and catering	5
Footwear	1
Forestry	1
General	15
Genetics	1
Geology	9
Geophysics	5
Hydroelectric power stations	5
Information technology	8
International Monetary Fund	8
Isolation	5
Librarianship	1
Life sciences	3
Marketing	1
Materials science	1
Mathematics	1
Medical	1
Metallurgy	44
Mining	1
Molecular genetics	1
Name of organization	3
Nautical	2
Nuclear physics	2
Nursing	1
Oil / petroleum	18
Oil processing plants	5
Perfume	1
Physics	7
Piezoelectric crystals	5
Planning	1
Plastic surgery	1
Plastics	3
Polymers	1
Quality control and standards	6
Radio	1
Rail transport	2
Refrigeration	3
Research and development	1
Securities	3
Shipbuilding	2
Space	26
Sports	5
Statistics	8
Surgery	1
Technology	260
Telecommunications	11
Textile industry	6
Thermal Energy	1
United Nations	1
Water resources	19
Wind Energy	10