... gallbladder, spleen, kidney, pancreas, heart, bladder, womb, and urinary system and it can also be applied to check intrauterine equipment ... Electron focusing, free combination of focus9. Gain control, full gain and 8 stages conversion10. Image grey-scale, four stages γ11 ... Full-screen and parts character annotation, real time clock and calendar12. Frequency points, 2.0MHZ, ...