结构射

But in the + moiety, the three benzimidazole rings shared the whole space equally, the dihedral angel among them is about 120°, just like three fan blades of an airscrew, the molecular structure appear gear-like shape.

X-射线单晶衍射测试、红外、紫外等方法确定了三(2-苯并咪唑亚甲基)胺的Fe和Co配合物的结构，由晶体结构发现金属配位情况不同、配合物在结构上存在着差异，Fe为八面体构型，而Co为三角双锥构型；其次，两配合物中的苯并咪唑环间夹角不同，配合物中包含N2和N4的两个苯并咪唑环间夹角仅为9.41(0.11)，几乎构成一个平面，呈蝴蝶形；后者Co三个苯并咪唑环几乎平分了整个空间，它们之间的夹角约为120，呈三扇叶螺旋桨式构型，为齿轮形。

Hydroxysteroid dehydrogenase/carbonyl reductase ( 3α-HSD/CR,EC 1.1.1.50 ) from Comamonas testosteroni is an inducible enzyme which catalyzes the oxidation of androsterone with NAD+ to form androstanedione and NADH. 3α-HSD/CR was a member of the SDRs family, whose crystal structure had been solved by X-ray diffraction in 2000. The structure of 3α-HSD/CR is a homodimer which shows a typical pattern of Rossmann-fold structure consisting of βαβ units, and reaveals similarity with other members upon the SDRs family.

中文摘要 3α-Hydroxysteroid dehydrogenase/carbonyl reductase ( 3α-HSD/CR，EC 1.1.1.50 )是从Comamonas testosteroni菌体中分离而来的诱发性酵素，利用NAD+为辅因子，将受质androsterone氧化成androstanedione并伴随NADH的生成而完成催化反应。3α-HSD/CR是属於SDRs家族成员之一，其立体结构已经在2000年利用X-ray晶体绕射所解出。3α-HSD/CR在结构上为一同源双聚体，并和其它家族成员一样具有βαβ二级结构所叠合组成的Rossmann-fold特徵。

The fluctuation structures were observed in theexcitation function of all the outgoing channels.Statistics method based on thefluctuation correlation was used to study and analyze the excitation systematically,which demonstrates a series of characters in the dissipative collision 〓 and〓 by which they are different from the compound nuclei in the cross sectionfluctuation,such as strong correlation among outgoing channels,long range energycorrelation and angular correlation.

各个出射道的激发函数中都观测到了涨落结构，运用涨落关联的统计理论方法对激发函数进行了系统地研究和分析，揭示出〓和〓耗散反应截面涨落区别于复合核截面涨落的一系列特征性质，如强烈的出射道关联、长程的能量关联和长程的角度关联。

The filled skutterudite compound possesses bcc structure as evidenced by electron diffraction analysis. Powder X-ray diffraction data of filled skutterudite samples were characterized by Rietveld method for some crystallographic parameters such as lattice constant, atomic occupation, atomic position, etc.

另外，通过对化合物电子衍射的分析证实了〓化合物是一种具有bcc结构的化合物；运用Rietveld方法对填充skutterudite化合物X衍射谱线进行了分析，对化合物的晶格常数、原子位置的占有率以及原子位置坐标等晶体学参数进行了表征。

The structure and chemical compositions of the surface oxide film were investigated by XRD and Auger electron spectrometry.

利用X射线衍射和俄歇电子衍射观察了表面膜的化学成分及结构。

Complexes have been determined by single crystal X-ray diffraction, and study the influence factor of their structure through the discussion of crystal structure of these compounds.

利用单晶X-ray衍射测定了这三种化合物的结构，通过对三种化合物的晶体结构的讨论，初步探索了影响它们结构的因素。

In practice the diffraction pattern is iteratively solved at ever-increasing "shells" of resolution; the crystallographer alternates between building a model structure （working in "real" space） and comparing the model's calculated diffraction pattern with the observed diffraction pattern （working in "reciprocal" space）.

在实际操作中这一衍射图形被反复地不断升高的分辨率处理，结晶学家不断在建立一个模型结构并按该模型计算出的衍射图形与实际观察到的比较。

In practice the diffraction pattern is iteratively solved at ever-increasing "shells" of resolution; the crystallographer alternates between building a model structure （working in "real" ace） and comparing the model's calculated diffraction pattern with the o erved diffraction pattern （working in "reciprocal" ace）.

在实际操作中这一衍射图形被反复地不断升高的分辨率处理，结晶学家不断在建立一个模型结构并按该模型计算出的衍射图形与实际观察到的比较。

The chemical composition, morphology, crystal microstructure, particle size, infrared spectra properties and oxidization resistance of the product were analyzed using the high-resolution transmission electron microscopy, X-ray diffractometry, transmission electron microscopy, corresponding selected-area electron diffractometry, thermogravimetric analyzer differential scanning calorimeter and Fourier transform infrared spectrum.

采用高分辨透射电子显微镜、X射线衍射、透射电子显微镜、选区电子衍射、热重和差示扫描量热分析仪以及傅里叶变换红外光谱等手段对试样的成分、表面组成、形貌、晶体结构、粒度、红外吸收性能和氧化特性进行了分析。

Glancing angle X-ray diffraction revealed the amorphous nature of the films.

掠射角X射线衍射分析显示，经快重离子辐照后的薄膜仍然是非晶结构薄膜。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。