... frame correlation, and the linear interpolation, etc.The instrument has such five display modes as B, B/B, 4B,B+M, and M. Under ... the B mode there are six magnifications: ×0. ... Parameters:Structure: portable and trolley, KJ-4001, 4002, 4003 and 4003(workstation)Display mode: Convex array: B, B/B,4B, B+M, and MMagnification: ×0.8 ...