在严重的折皱作用下,摩擦阻力在织物抗折皱能力中仅居次要地位.In severe creasing the frictional resistance plays only a minor role in determining the crease resistance.因此,折皱回复性能是考核织物性能的重要指标之一.So the crease recovery is a one of them.如果隔膜折皱, 则按照前面的步骤更换.I...
Methods: Gated SPECT ( G - SPECT ) and rest equilibrium radionuclide angiocardiography ( ERNA ) were performed on 42 normal cases within 1 w.方法: 42例正常人,在行门控心肌断层显像 ( G - SPECT ) 后1周内行平衡法核素心室造影 ( ERNA).All the patients und...