An unknown polymer was determined by one-dimension and two-dimension technologies of infrared absorption spectroscopy and nuclear magnetic resonance.
利用红外吸收光谱及核磁共振波谱仪的一维和二维技术对一种未知聚合物试样进行鉴定。
2
The structure and performance of a three-dimension movable target holder used in nuclear reaction experiments are described.
描述了遥控三维调变的核反应靶架及其控制器的结构与性能。
3
Diplomats who've seen the IAEA's findings say that it contains a telling chain of evidence which proves that Iran's nuclear programme has a military dimension.