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focal length
oil	震源距
tech.	焦距; 焦点距离
focal-length
gen.	焦距
focal lengths
sol.pow.	焦距
English thesaurus
focal length
abbr., opt.	f

focal length: 74 phrases in 13 subjects

Aviation	2
Business	2
Cartography	1
Electronics	5
Explosives and Explosive Ordnance Disposal	1
General	3
Geophysics	4
Information technology	1
Metallurgy	3
Remote sensing	3
Space	9
Technology	39
Textile industry	1