The essence of the trans-regional population floating is a kind of redistribution of the labor force reso…
人口区际间流动的实质是劳动力资源在不同地区之间的重新配置。
In this paper the basic principle of Nuclear Magnetic Reso-nance (NMR) technique and its application in metal research are introduced.
本文介绍了核磁共振技术的基本原理及其在金属研究中的应用。
In this paper the basic principle of Nuclear Magnetic Reso-nance (NMR) technique and its application in metal research are introduced.
本文介绍了核磁共振技术的基本原理及其在金属研究中的应用。
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