seal off an enemy force from its sources of support, to deny it freedom of movement, and prevent it from having contact with other enemy forces, eraldama vaenlase üksust toetusest, et piirata tema liikumisvabadust ja takistada kontakti teiste vaenlase üksustega

A pure culture produced from an isolate i.e from an individual (eg, a spore or a single organism), viable part of an organism (eg, a cell) or a strain that has been isolated (eg, from diseased tissue, contaminated water, or the air).