体甲
- 与 体甲 相关的网络例句 [注:此内容来源于网络,仅供参考]
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By taking granite porphyry from the Jiama Porphyry Copper Deposit in Tibet for example, this paper briefly introduces the image characteristics of scanning electron microscope cathodoluminescence and optical microscope cathodoluminescence, and summarized the application of quartz cathodoluminescence in study of igneous rock.
文章以甲玛斑岩铜矿床中岩体样品分析为例,简要介绍了光学显微镜阴极发光和扫描电镜阴极发光两种图片的特点,并综述了石英阴极发光在火成岩研究中的应用。
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The results of the reaction show that better regioselectivity is obtained when Cd2+ is used as additive and give stereoselective product when cinchonine is used as chiral additive.Keywords: NaBH4, Regioselective,Stereoselective,Benzoyl acetone,Metal ion
结果发现,不同的金属离子添加剂使反应出现不同的化学选择性,而Cd2+离子对苯甲酰丙酮的还原具有较好的化学选择性,同时在辛可宁存在条件下得到了对映体过量的产物。
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METHODS: Inexpensive quinine and cinchonine were transformed to 9NH2quinine and 9NH2cinchonine, which reacted with 4chlorobenzoyl chloride to afford 2 novel chiral ligands. The AD reactions of olefins were performed in H2OtBuOH (1∶1) using the 2 ligandsK2OSO24 as catalysts.
以价廉易得的奎宁和辛可宁为原料,经过结构转换得到9氨基奎宁和9氨基辛克宁,进而与对氯苯甲酰氯反应制得两种新型手性配体,并将其用于锇催化的烯烃的不对称双羟化反应。
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Three rare earth β-diketone complexes: Gd3BIPY, Sm3BIPY, La3BIPY were synthesized by a precipitation method with a mixture of ethanol and water using dibenzoylmethane and 2,2'-dipyridyl as the ligands.
以二苯甲酰甲烷和2,2'-联二吡啶为配体,采用乙醇-水溶液析出法合成了三种稀土-β-二酮配合物:Gd3BIPY、Sm3BIPY、La3BIPY。
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Using cobalt chloride and ferromanganese as precursor of cobalt-based catalyst, the performance of the catalyst for hydroformylation of cyclohexene was studied.
以氯化钴和锰铁合金粉为钴基催化体系的前驱体,研究了该催化剂体系对环己烯氢甲酰化反应制备环己烷基甲醛的催化性能;并考察了溶剂、温度、压力等反应条件的影响。
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Appraised the "Blood-Stasis" clinical appearance integrative scores, Nail fold Microcirculation scores, and determined hemorheological indexes before and after treated 3 months, 6months, then contrast intragroup and intergroup, and contrast to 30 healthy mid-age women who underwent checkup at the same time; determined anterior-posterior position lumbar1~4 vertebra body bone mineral density before and after treated 6 months, then contrast intragroup and intergroup.
两组治疗前及治疗3个月、6个月后分别评定"血瘀"临床表现综合评分、甲襞微循环评分并测定血液流变学指标,组间及组内治疗前后对比,并分别与同期体检30例健康中年妇女对比;治疗前及治疗6个月后测定腰1-4椎体前后位骨矿物密度,组间及组内治疗前后对比。
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This dissertation was designed to study heteto-phase grafting polymerization of vinyl acetate , maleic anhydride and VAC/MAH binary monomer system, irrespectively, with low density polyethylene film as substrate and benzophenone as photoinitiator. The purpose is to develop new and more effective methods to modify the surface and buck properties of polyolefines by studying the grafting mechanism of the system and exploring the characteristics of the grafting process.
本文主要以低密度聚乙烯膜为基体膜,以二苯甲酮为光引发剂,分别对醋酸乙烯酯、马来酸酐以及VAC/MAH的非均相接枝聚合反应进行了系统研究,以探讨相关的接枝反应机理、接枝反应过程以及接枝工艺的可行性,目的在于建立聚烯烃材料本体和表面改性新方法。
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Levorotatory and dextrorotatory enantiomers of cetirizine and other nine compounds were synthesized and were identified by MS, IR, 1H-NMR and elemental analysis .
通过化学拆分得到单一手性的4-氯-α-苯基苯甲胺,然后由它出发合成出左西替立嗪和其它九个化合物的单一对映体,并经元素分析、红外、质谱、核磁等鉴定。
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In short, the verification result shows the ability for mouse manipulation, the understanding of the association between the screen and the mouse among the 3 interviewees have gradually improved and enhanced via the "teaching material" training, in which case study A is successfully operated per course material instructions, while case study B, to even migrate the ability of mouse manipulation to other CAL software, it is evident that the practice of "teaching material" will help intellectual disabled students utilize CAL to open the ability for multiple-purpose learning, and to further enhance the learning outcomes.
验证结果发现经「中介教材」训练后,三位受测者在实验过程中对操作滑鼠之技能、对萤幕与滑鼠间之关联性的理解,均逐渐进步与提升,其中个案甲能在验证后期,依教材指示成功操作,而个案乙更能将操作滑鼠之能力迁移至其他CAL软体中,可见『中介教材』之练习有助於认知功能障碍学生运用电脑辅助学习,开启多元学习之能力,进而提高学习成效。
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It is shown from both the electronic and stereo structural analyses, that PDBP is a superior coordinate ligand as compared with TPP, which was employed in the rhodium/phosphonium catalyst for the hydroformylation reaction.
采用元素分析、红外、核磁等方法,对其结构进行了表征,并将PDBP用于丙烯氢甲酰化反应的催化剂配体。
- 推荐网络例句
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Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.
在对危险的南部地区访问时,他斥责什叶派民兵领导人对中央集权的挑衅行为。
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In fact,I've got him on the satellite mobile right now.
实际上 我们已接通卫星可视电话了
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The enrich the peopling of Deng Xiaoping of century great person thought, it is the main component in system of theory of Deng Xiaoping economy, it is a when our country economy builds basic task important facet.
世纪伟人邓小平的富民思想,是邓小平经济理论体系中的重要组成部分,是我国经济建设根本任务的一个重要方面。