BEIJING, March 24, 2023 /PRNewswire/ -- WiMi Hologram Cloud Inc. (NASDAQ: WIMI) ("WiMi" or the "Company"), a leading global Hologram Augmented Reality ("AR") Technology provider with years of investment in holographic sights 3D map construction in the field of SLAM, today announced the development of an HV-SLAM passive navigation system based on...