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sección eficaz
earth.sc.	nuclear cross-section
earth.sc., life.sc.	cross section; cross-section
el.	packing fraction
phys.	cross section of interaction

sección eficaz: 44 phrases in 8 subjects

Chemistry	2
Earth sciences	27
Electronics	2
General	8
Lasers	1
Nuclear physics	1
Physical sciences	1
Physics	2