... obstetrics diagnosis. Functional characteristics:The KJ-4001 B ultrasonic diagnostic instrument (hereinafter refers to as ... such five display modes as B, B/B, 4B,B+M, and M. Under the B mode there are six ... 4003 and 4003(workstation)Display mode: Convex array: B, B/B,4B, B+M, and MMagnification: ×0.8, ×1.0, ... The puncture guide line can be displayed under B mode.Gain control: The total gain, near ...