A lot of subjects such as the difference between longitudinal and transverse conductivity, proton compensate, frequency response, and sample geometry etc, remained for further study.
但测试过程中还有许多问题有待进一步研究，如膜的纵向与横向电阻的差别、质子补偿、膜的频率响应特性、测试几何尺寸的影响等。
Proton NMR two dimensional time-domain data are collected based on the inversion-recovery technique. Double Fourier transformation of those data yields the two dimensional frequency-domain data.
基于反转恢复法建立质子nmr二维时域数据，经双重付里叶变换获得二维频域数据。
Among these, the method based on water proton resonance frequency (PRF) shift becomes the most promising way because of its linearity and tissue non-dependency.
有多种MRI技术可用于获得人体组织的相对或绝对温度，其中基于水质子共振频率偏移（PRF）的方法由于其线性和组织无关性而最多被采用。
Among these, the method based on water proton resonance frequency (PRF) shift becomes the most promising way because of its linearity and tissue non-dependency.
有多种MRI技术可用于获得人体组织的相对或绝对温度，其中基于水质子共振频率偏移（PRF）的方法由于其线性和组织无关性而最多被采用。
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