pinning center造句

• Pinning centers , that are some abnormal regions in type ii superconductors , will hinder the flux motion . certain of remnant magnetism in a superconductor will make it to a superconducting permanent magnet
  非理想第类超导体内部存在的异常区，即钉扎中心，会对磁通线的运动产生阻碍作用，使超导体具有一定的剩磁而成为超导永磁体。