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Strahlungsenergie f
gen.	radiant energy
astr.	quantity of radiant energy
el.	ray energy
med.appl.	energy of radiation
nucl.phys., радиоакт.	energy of particle radiation
opt.	radiant energy (radiometric quantity)
phys.	radiated energy; radiating energy; radiative energy
tech.	radiation energy

Strahlungsenergie: 3 phrases in 2 subjects

Electronics	1
Optics branch of physics	2