本文简述了核磁共振技术的历史和原理。
The history and the principle of NMR technology are described in this paper.
第一部分：简述郑韩地区的历史沿革与东周郑韩疆域。
Part one: On the history of Zheng and Han vassaldoms and their territory.
本文简述了鲜药的应用历史，并介绍了鲜药的特点及开发和利用的广阔前途，指出鲜药利用的关键在于鲜药剂型的研制。
This paper concisely explains the applied history of the fresh herbs and introduces the characteristic of fresh herbs, also put forwards that they will have widely development in the future.
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