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periodo v
commun., transp.	interval
earth.sc.	periodisk bølge
el.	periodetid
math.	periode; tilbagevendelsesperiode
transp.	lysperiode
periodo geologico v
life.sc.	periode

periodo: 736 phrases in 51 subjects

Accounting	1
Agriculture	27
Animal husbandry	1
Astronautics	2
Business	1
Chemistry	19
Coal	1
Commerce	4
Communications	32
Construction	2
Earth sciences	19
Economy	39
Education	15
Electronics	27
Energy industry	2
Environment	17
Finances	73
Fish farming pisciculture	8
General	49
Government, administration and public services	3
Health care	18
Hobbies and pastimes	2
Human rights activism	2
Immigration and citizenship	3
Industry	1
Information technology	8
Insurance	40
Labor law	14
Law	33
Life sciences	26
Marketing	4
Materials science	5
Mathematics	5
Mechanic engineering	1
Medical	51
Metallurgy	1
Microsoft	29
Natural resourses and wildlife conservation	10
Natural sciences	12
Nuclear and fusion power	3
Nuclear physics	1
Pharmacy and pharmacology	6
Politics	3
Procedural law	2
Security systems	6
Social science	16
Statistics	28
Taxes	9
Technology	8
Transport	44
Work flow	3