operationslinie znamená v Angličtina

baseline [baselines]▼noun
[UK: ˈbeɪ.slaɪn] [US: ˈbeɪs.ˌlaɪn]

baselines▼noun
[UK: ˈbeɪ.slaɪnz] [US: ˈbeɪ.slaɪnz]