The structure of products was identified by elementary analysis, infrared spectroscopy and nuclear magneticspectrum.
经元素分析、红外光谱和核磁共振谱确认了产物的结构。
2
It seems to imply that magic affects the electro-magneticspectrum in some way. Some serious energy is being dealt with.
这似乎意味着魔法以某种方式影响了电磁波，进行了重大的能量转换。
3
Three standard grades of magnetic materials are offered to fulfill a broad spectrum of magnetic field requirements along with a high resistance to demagnetization.