ср.
1) mastering
mastery
assimilation, familiarization
coping
2) opening up
settling
developing (новых земель)
освоени|е - с.
1. mastering, assimilation
~ современных машин mastering the use of up-to-date machinery
период ~я breaking-in period
2. (обживание) development, pioneering, settling
~ пустыни reclamation of the desert