It consists of a magnetic scanning system, a thick slit, a fluorescent screen and a CCD image processing system.

它包括有磁扫描系统，厚窄缝，荧光屏以及CCD图像处理系统。

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Scanning and matching the rocks' magnetic signatures, which require more funds to complete, are the crucial complement.

扫描并匹配这些岩石的磁性签名需要更多的经费来完成，这是至关重要的补充。

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The coils in the scanning apparatus detect these magnetic changes, which are used to build up a map of the part of the body being examined.

扫描仪上的线圈探测到这些磁场变化，并以此构建出患者受检部位的图谱。

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However, MRI requires large magnetic fields for successful scanning - bigger than those commonly used in industry.

BBC: Study into health impact of MRI

Daniel Langleben, of the University of Pennsylvania, in Philadelphia, uses a brain-scanning technique called functional magnetic-resonance imaging to probe his subjects' honesty.

ECONOMIST: Lie detection

Scanning their brains using functional magnetic resonance imaging, the scientists found that a region involved in language processing - the temporal lobe, part of the prefrontal cortex - was activated during verbal learning in rested patients.

BBC: Brain 'battles sleep deprivation'