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опциональное
 опционально
patents. electively
progr. optionally
| действие
 действие
gen. operation; act; efficacy; agency; work; deed

to phrases
опционально adv.stresses
patents. electively (Мирослав9999)
progr. optionally (ssn)
опциональный adj.
math. optional
опциональное: 26 phrases in 11 subjects
Aviation3
Computer networks1
Construction1
Mathematics1
Mechanic engineering1
Oil and gas1
Power system protection1
Programming12
Stratigraphy1
Technology1
Telecommunications3