Difference between the distance from the FOCAL SPOT of an X-RAY TUBE to the incident face of a FOCUSED GRIDand the FOCUSING DISTANCE of that grid.
Razlika rastojanja FOKUSA RENDGENSKE CEVI od upadne strane FOKUSIRANE REŠETKE i FOKUSNOG RASTOJANJA te rešetke.
Razlika rastojanja FOKUSA RENDGENSKE CEVI od upadne strane FOKUSIRANE REŠETKE i FOKUSNOG RASTOJANJA te rešetke.
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