核磁共振技术(NMR)
第1楼2005/05/21
看这个文件试试:Relaxation times and their measurementfile:///C:/Documents%20and%20Settings/zy1/Local%20Settings/Temporary%20Internet%20Files/Content.IE5/GLWHU3CD/NMR_3%5B1%5D.ppt#256,1,Relaxation times and their measurement
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