【摘要】 本文对超导核磁共振成像磁屏蔽技术的发展过程，几种屏蔽方式的比较、研究的问题和发展趋势等进行了概括性的论述。更多还原

【Abstract】 The development and the current trend in magnetic shielding technologyfor superconducting magnetic resonance imaging (MRI)are summarily pres-ented in this paper. Besides,the review of various magnetic shielding techno-logies for MRI and the discussion of their difficult problems are also given inthis paper.更多还原