unlax, UN, Unconventional Warfare Operating Area, unmagnetized plasma photonic crystals, Unprotected left main coronary artery, undifferentiated sarcoma of the liver, unmodulated continuous-wave jamming, unbalanced multiple description coding, unbalance between city and countryside, Unbreakable like nothin'could go wrong, Unprocessed request for domain 'ETR., uncinate process carcinoma of pancreas 返回 unripped