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It crystallizes in the monoclinic space group C2/c, with a=1.6953(3)nm, b=1.9241(4)nm, c=1.7760(4)nm,β=94.75(3)°. Each Gd ion is coordinated by two oxygen atoms from two different radicals NITPh(OCH3)3 and six oxygen atoms from three hfac molecules to form eight-coordinated dodecahedron geometry.

Gd离子采取八配位的模式,两个氮氧自由基作为单齿端基配体分别以氮氧基团的氧原子与Gd离子配位,三个六氟乙酰丙酮阴离子分别以两个氧原子与Gd离子配位,构成十二面体。

A schematic model was proposed to illustrate the occurrences of various lithologies and lithofacies associations. The erosional surfaces on siliciclastic mudstones, funnel-shaped structure, and the exhuming of massive cold-seep carbonates exposed might have been occurred concurrently during a tectonic unstable time in SW Taiwan. The deposition of fossiliferous mudstone interfingered with the conglomerate lithofacies, and represented the rapid facies transition from siliciclastic (non-carbonate) into carbonate environment.

综合岩相观察结果,建构一个符合台湾西南部更新世珊瑚礁与基底泥岩接触关系的沉积相模式;其中,基底泥岩顶部的不规则冲蚀面、充填碳酸盐胶结泥岩砾与碳酸岩烟柱的漏斗状沉积,以及块状冷泉碳酸盐岩的出露,可能均为区域地质构造活动时期所造成;至於与含化石泥岩同时沉积的砾岩相,可能均为基底泥岩在快速浅化的过程中所沉积,标志古环境由矽质碎屑快速转变为碳酸盐环境的过程。

The dislocation configuration in a single crystal Ni base alloy with (100) plane parallel to stress axis during primary creep has been investigated by TEM.

利用TEM研究了单晶镍基合金平行于应力轴的(100)晶面拉伸蠕变初期的位错组态,表明:形变特征是位错在γ相八面体滑移系中运动。

The results indicate that response surface method based on radial basis function is the most suitable for practical problems.

结果表明,基于径向基函数的响应面建模方法最适于实际问题的响应面建模。

Positive staining of Stro-1 was found in 7.6% of SCAP. Morphologically, PDLSCs were fusiform-shaped, with many short and long ramifications under a scanning electron microscope, and the secreted extracellular matrix were around them.

透射电镜下可见,第1~3代牙周膜干细胞及根尖牙乳头干细胞生长良好,胞浆内线粒体,高尔基体和粗面内质网丰富,随着培养时间的延长,分泌的细胞外基质增多。

It's found that the (001) facet is the growth facet when the NBW crystal is grown by the Bridgman method through spontaneously crystallization. This phenomenon is in accordance with the growth characteristic of the typical scheelite crystals, and can be well explained by the Bravais law and the theory of anion coordination polyhedron.

指出坩埚下降法自发成核NBW晶体生长的生长面为(001)面,这与白钨矿结构晶体(001)面生长快的特点是完全符合的,Bravais法则和负离子配位多面体生长基元理论都能够很好地解释这一现象。

The results showed that the shape selective effect of the faujasite is obvious, and the thermodynamic balance exists between 2,6 DTBN and 2,7 DTBN.

结果表明,八面沸石对该反应过程有较好的择形催化作用,两种异构化产物(2 ,6 二叔丁基萘和 2 ,7 二叔丁基萘)之间存在着热力学平衡,即两种异构化产物可在酸性中心位上相互转化。

In the reaction of VS+ with CO2, we suggest that, at low energies, the reaction proceeds along the A' surface and then makes an intersystem crossing to the A surface and yields the ground state product VO+3(-, which may explain the small VO+ cross-section at low energies observed in the experiment.

在VS+和CO2的反应中,我们提出在低能区反应沿A'势能面进行然后和A势能面发生交叉产生基态产物VO+3(-,这也解释了为什么实验上VO+的反应截面很小。

For example, the interaction between substrate and block copolymer is determined by surface free energy of the substrate, crystallization is dependent on crystallization temperature and annealing temperature, and microphase segregation strength varies with chain length of the block copolymer.

基体和嵌段共聚物之间作用力可通过基体表面自由能调控,可结晶链段的结晶可通过结晶条件调控,相分离强度可通过嵌段共聚物链长控制。

To presents the methods of designing and making circuit board for experimental teaching by computer, laser printer and heating roller, which are the methods of designing and making printed circuit board on one-side copper plate and the circuit drawing, on insulated epoxyresin base.

介绍了利用计算机、激光打印机和制板机设计制作实验教学电路板的方法。即在单面覆铜板的铜面设计制作印制电路板,在绝缘玻纤环氧树脂基面设计制作电路原理图。

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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