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Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet?keyword=Permanent current switch device for a refrigerator-cooled superconducting magnet 专利,更快更准确