严格区别铁磁性与顺磁性物质有时是很困难的。
It is sometimes difficult to draw the line separating ferromagnetic from paramagnetic substances.
如果在地层中含有顺磁性物质，则地层的核磁弛豫特性呈现新的变化特征。
The nuclear magnetic relaxation characteristics of formations will change if there are paramagnetic materials in the formations.
结论：SWI是一种对缺氧血、铁和钙等顺磁性物质具有极高敏感性的磁共振检查方法，在神经障碍性疾病领域得到了广泛使用。
Conclusion SWI is a kind of MRI examination technique, which is sensitive to paramagnets, such as deoxygenated blood, iron and calcium, and used in neurological disorders widely.
结论：SWI是一种对缺氧血、铁和钙等顺磁性物质具有极高敏感性的磁共振检查方法，在神经障碍性疾病领域得到了广泛使用。
Conclusion SWI is a kind of MRI examination technique, which is sensitive to paramagnets, such as deoxygenated blood, iron and calcium, and used in neurological disorders widely.
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