Death and decay of body tissue, often occurring in a limb, caused by insufficient blood supply and usually following injury or disease.
坏疽软组织坏死或衰退，经常由供血不足和紧接着的受伤或疾病而发生在四肢
A flight garment worn by astronauts and jet pilots that presses on the lower body to maintain the blood supply to the brain during rapid vertical acceleration.
