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An NMR Study on A Derivative of Dichromium Ene 一种双香豆蒽衍生物的NMR研究
Keywords NMR;chemical shift;2D NMR;dichromium ene;spectroscopic analysis; 核磁共振;归属;二维核磁共振;二香豆蒽;波谱分析;
dichromium ene 二香豆蒽
In this case presumably the work has done, ENe. 在这种情况下，可以推测到所作的功ene。
Go up/down/along this road to the ene. 沿着这条马路走;直到尽头.
The hetero ene reaction is an important part of ene reaction. 杂原子烯反应是该反应的重要组成部分。
Ene reaction is one of the simple and versatile reactions in organic synthesis. 烯反应是有机合成中简单而用途广泛的反应之一。
The substance was identified as 22 hydroxy 23, 24 bisnorchol 4 ene 3 one. 待鉴定产物为 2 0 羟基 2 3,2 4 二降胆 4 烯 3 酮。
G ene ral examination did not reveal abnormal findings except the skin lesions. 组织病理显示为慢性肉芽肿样反应，见大量淡棕色分枝分隔的菌丝。
NEPARTAK will move ENE in the northern periphery of the subtropical ridge. 尼伯特将沿副热带高压脊的北面向东北偏东移动。
Abstract: Ene reaction is one of the simple and versatile reactions in organic synthesis. 文摘:烯反应是有机合成中简单而用途广泛的反应之一。
This paper made a failure analysis of a mechanicaI seal of pump for Orthoxy1 ene as to its breaking down under thernanufacture of self. 针对国产化过程中，邻二甲苯泵用机械密封工作时产生的故障，进行了失效分析。
The first belt stretches from Qinghe, Wenquan to the NW direction and the second extends from Nankou, Changping to the ENE direction. 一条从清河、温泉一带向北西方向伸展，到怀来县以北的黄土窑一带；另一条是自南口、昌平一带向北东东向伸展的活动断裂带。
Now comparative genetics has been used to facilitate the isolation of g ene, and it indicates a new field of evolution. 比较遗传学已经被应用于植物基因组的基因定位，并预示出进化研究的一个全新领域。
They were principally used to catalyze aldol, allylation, Diels-Alder, ene and Friedel-Crafts reactions. 它们主要被用来催化Aldol;烯丙基化;Diels-Alder;Ene和Friedel-Crafts等反应.
Abstract: Thermoplastic polyurethane based on polybutadi ene was prepared by using Haake mixer. 文摘:利用哈克流变仪制备了热塑性聚丁二烯型聚氨酯。
Three compounds were isolated and elucidated as fern 9(11) ene,hop 22(29) ene and cyclolaudenol. 鉴定了3个化合物，为羊齿?9（11）?烯、里白烯、环劳顿醇。
Thermoplastic polyurethane based on polybutadi ene was prepared by using Haake mixer. 利用哈克流变仪制备了热塑性聚丁二烯型聚氨酯。
HALONG will move ENE to NE along the NW periphery of the subtropical ridge in the next 48 hours. 夏浪将于未来48小时沿副热带高压脊西北部向东北或东北偏东移动。
HAGIBIS has been moving ENE in the past 24 hours. At 14 HKT, HAGIBIS was centred about 240 km (130 NM) SSW of Manila. 海贝思于过去24小时继续向东北偏东移动。在14HKT，海贝思集结在马尼拉之西南偏南约240公里(130海里)。