复旦大学社会科学高等研究院 关键词：流动；乡土社会；双二元；不确定性；T 村；社会形态 [gap=11886]Key words Migration ；Rural society；Double duality ；Indefiniteness；T Village；Social condition
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如果双黑洞结合在一起，那么更强的引力波脉冲波将从这个双黑洞的二元体系辐射开来。
If the black holes in a binary system merge, then an even stronger pulse of gravitational waves radiates away from the system.
本发明涉及一种长链二元酸双酯的制备方法，尤其是一种用发酵法生产的长链二元酸制备长链二元酸双酯的方法。
The present invention relates to a method for preparing long-chain dibasic acid diester by using long-chain dibasic acid produced by fermentation process.
二元系系统由被动的，无固定磁定模板组成，轻质复合材料构造而成，且具有双轴移动活塞，在空气轴承中滑动。
Two component system consists of passive, magnet-free stationary platen, constructed of lightweight composite materials, and dual axes moving forcer, gliding on the air bearings.
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