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The vertical movement is promoted by increased diaphragmatic movement.

横向运动是可以采取用到增强横膈膜的方式。

The results showed that VA mycorrhizal fungi and dicalcium phosphate, octocalcium phosphate, iron phosphate, aluminium phosphate promoted growth and increased phosphorus content of corn plant.

结果表明:VA菌根真菌和磷酸二钙、磷酸八钙、磷酸铁和磷酸铝均促进了玉米植株生长,增加了植株含磷率和吸磷总量。

In chapter one, at first, we simply outlined some reactions promoted by samarium diiodide in recent years.

第一章,首先我们综述了近几年来二碘化钐促进的有机反应在有机合成中的应用。

The first one is focused on the samarium diiodide promoted organic reactions and their applications in organic synthesis.

二碘化钐促进的有机反应在有机合成中的应用;2。

The first one is focused on the samarium diiodide promoted organic reactions and their applications in organic synthesis.

第一章,首先我们综述了近几年来二碘化钐促进的有机反应在有机合成中的应用。

Ytterbium metal, ytterbium diiodide, samarium diiodide promoted organic reaction and their applications in organic synthesis;;bis carbonate in organic synthesis

中文题名金属镱,二碘化镱和二碘化钐促进的有机反应在有机合成中的应用;双碳酸酯在有机合成中的应用

And then the intermolecular reductive cyclization reaction of N,N-diethyl-o-nitrobenzenesulfonamide with nitriles promoted by samarium diiodide was studied. 2H-1,2,4-Benzothiadiazine 1,1-Dioxides were prepared in good yields under mild and neutral conditions.

然后研究了二碘化钐促进的邻硝基N,N-二乙基苯磺酰胺与腈发生的分子间交叉还原偶联反应,一步合成了2H-1,2,4-苯并噻二嗪-1,1-二氧化物。

In chapter four, the preperation of ytterbium diiodide was examined. The reductive cleavage of Se-Se bond and S-S bond induced by ytterbium diiodide was investigated. The reaction of diselenides and disulfides with allylic bromide promoted by ytterbium diiodide was also examined. The intermolecular Barbier-type reaction induced by ytterbium diiodide was studied. In the last section of this chapter, the intermolecular reductive coupling of nitriles with azides induced by samarium diiodide was investigated.

第四章,研究了二碘化镱的制备方法,以及二碘化镱作为一种优良的单电子转移试剂在有机合成中的应用:二硒醚的Se--Se键和二硫醚S-S键的还原断裂,及其在合成烯丙基硒醚,硒代酯和烯丙基硫醚,硫代酯中的应用,实验结果表明二碘化镱也能促进分子间的Barbier反应,而文献认为二碘化镱不能促进分子间的Barbier反应;最后研究了二碘化钐促进的叠氮化合物与腈的交叉还原偶联反应,一步高收率地制备脒的方法。

Studing on samarium diiodide promoted asymmetric intramolecular reducing coupling reactions, we have made the resolution of the racemic biaryl dials by using enantiomeric N-tert-butanesulfinamine as the resolving reagent successfully and thus obtained a series of axially chiral biaryl dials with high enantiomeric excess.

中文摘要在二碘化钐促进的分子内不对称还原偶联反应中,我们不仅对联芳基二醛底物的合成路线进行了优化,还发现N-叔丁基亚磺酰胺辅基可以作为手性试剂,成功地对联芳基骨架二醛化合物进行拆分,得到高对映体过量的轴手性二醛类化合物。

Chinese people promoted the well-being of American people and updated and upgraded the industry with their diligency.

中国人民以勤劳的双手,增进了美国的福祉,促进其产业升级换代。

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The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。

The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.

聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力