查询词典 reflected ray

SO〓〓/M〓O〓 solid superacid was applied to the photocatalytic oxidation of organic pollutants for the first time. Porous SO〓〓/TiO〓 solid superacid catalysts with high specific surface area were prepared by sol-gel method. The photocatalytic degradation of bromomethane was used as model reaction. The influence of impregnation with H〓SO〓 solution on the structure of catalysts and their photocatalytic performance was systematically studied by using X-ray diffraction, X-ray photoelectron spectroscopy, N〓 sorption analysis applying BET method, UV-Vis diffuse reflectance spectroscopy, FTIR spectroscopy, O〓-TPD and photocatalytic activity measurement. The acidity of TiO〓-based catalysts was investigated by Hammett indicator method, NH〓-TPD and IR spectra of pyridine adsorbtion. The mechanism of superacidifing effects on photocatalytic performances such as the photocatalytic degradation rate of bromomethane, apparent kinetic constant and apparent quantum efficiency was discussed.The results indicated that SO〓〓 is combined with metal ions of TiO〓 in a chelating bidentate mode.

本文首次将SO〓〓/MxOy型固体超强酸催化剂用于光催化氧化有机污染物研究，采用溶胶-凝胶法制备了具有多孔性和大比表面结构的二氧化钛基固体超强酸光催化剂SO〓〓/TiO〓，以光催化降解溴代甲烷为模型反应，系统地研究了H〓SO〓浸渍处理对催化剂表面酸性及其气相光催化性能的影响，结合XRD、BET、XPS、FTIR、Hammett指示剂法、吡啶吸附红外光谱、NH〓-TPD、O〓-TPD、紫外可见漫反射光谱等多种表征手段，深入地讨论了超强酸化对TiO〓的改性机理，阐明了引起SO〓〓/TiO〓超强酸催化剂光催化降解溴代甲烷的转化率、表观反应速率常数和表观量子效率变化的本质原因。

Observation using transmission electron microscopy found the irreversible centripetal movement of chloroplasts in chlorotic plants, as a result occurred in three sequential events:(1) chloroplast positions changed from face position (with long axis of chloroplasts at the cell walls perpendicular to light ray) to profile position (with long axis chloroplasts near the cell walls parallel to light ray),(2) chloroplast shapes changed from long elliptical to circular,(3) chloroplasts were separated from the cell wall and moved to the center of the cell.

透射电镜观察发现失绿叶片中的叶绿体发生不可逆的向心运动，整个过程大致经历以下几个阶段：(1)叶绿体从叶绿体长轴垂直于光线转变至叶绿体长轴平行于光线；(2)叶绿体的形状从椭圆形转变为圆形；(3)叶绿体脱离细胞壁向细胞中心运动。

Abstract］ Objective To explore the diagnosis and clinical application values of MRI on chondromalacia patellae.Methods 12 cases of chondromalacia patellae were checked by orthovoltage X-ray,the sick knee joints were scanned with 0.2 T permanent magnetic MRI,and the displays of X-ray and MRI were analyzed.

目的 探讨MRI用于髌骨软骨软化的诊断及临床应用价值方法对12例髌骨软骨软化患者行常规X线检查，并使用0.2 T永磁型MRI对患病膝关节进行扫描检查，观察分析髌骨软骨软化的X线及MRI表现。

By comparison between SMM HXRBS observation and ground observation of Hα and CaIIK lines, especially through the combined study between SMM HXRBS observation and chromospheric flare models, the results show that: in the initial stage of impulsive phase, there is a correlative relation betweem Hα line intensity and hard X-ray emission; different spike in hard X-ray flux curve represents the burst at different location; the energy taken by non-thermal electron beam is larger than the radiative loss in chromosphere; for the flare studied here, the chromospheric evapporation is explosive; if the chromosphere is in balance between electron beam bombardment and radiative loss, the column mass density at the top of chromospheric flare model can not be taken as measure from the source of electrons and then the total material between the source of electrons and the top of chromosphere can be estimated.

通过一个具体耀斑的SMM HXRBS观测结果与同时基于地面得到的Hα和CaⅡK可见光谱观测结果对比，特别是将硬x谱观测结果与色球半经验模型联立研究，结果显示出：在脉冲相上升段，硬x发射与Hα辐射之间存在对应关系；硬x线光变曲线中不同脉冲爆发分量不太可能起源于同一位置；硬x辐射所反映的高能非热电子总携带能量大于色球总辐射损失；对所研究的耀斑而言，其色球蒸发过程是爆发性的；在详细比较了非热电子色球总沉积和色球辐射损失的基础上，指出半经验模型中色球顶部柱数密度不能看成是从非热电子源度量的，从而估计了色球顶部到非热电子源之间的总物质。

The X-ray can circumrotate left and right. It's the applied tool used in detection scene.With the laser measuring distance and confirm the orientation portable X-ray detector

管头能自动左右旋转，是现场检测的一种非常实用的工具，配上带有激光测距和定位的便携式探伤机，将为探伤人员提供一种全新而高效的检测手段。

Results The diagnostic accuracy of both MRI and X-ray film was 100%. Compared with X-ray, MRI was capable of clear display of the lesion extent, perpendicular periosteal reaction, the two layers of Codman's triangle and the skip lesions.

结果 MRI及X线平片对下肢骨肉瘤的诊断准确率均为100%，MRI在显示病变范围、放射状骨针、Codman三角两层结构以及跳跃病灶等方面明显优于X线平片检查。

The test of white blood cell count was finished by the different number of bifidobacterium suspension coloclysis and general irradiation with 5.0 Gy γ ray to establish acute radiation damage pattern.The 30 survival rate was tested and reported after the bifidobacterium suspension coloclysis of 1×109CFU/ml and 5.0 Gy ray to establish acute radiation damage pattern number in every day.

WBC计数：用不同数量级浓度的双歧杆菌菌悬液对小鼠灌肠28 d后，5.0 Gy照射后3 d、6 d和10 d采取小鼠外周血检测WBC数。30 d小鼠生存率：用1×109CFU/m l双歧杆菌菌悬液灌肠28 d后，用一次性8.0 Gy60Coγ射线全身照射，建立急性放射损伤模型，每日上下午各观察小鼠1次，记录死亡动物数和死亡日期。

Firstly, set rules for stacking and extract ray beam gathers from prestack seismic data. Secondly, dismiss the seismic traces that do not meet the cophasal stacking principle. Finally, stack the resulting ray beam gathers after performing dynamic correction and static correction.

首先制定叠加规则，抽取叠前地震数据射线束道集；然后根据同相叠加原理剔除不满足条件的地震道；最后将满足条件的射线束道集通过动校和静校进行叠加。

Results:Fractures in body,angle and ascending branch of mandible could be showed fine by all these imaging methods. 3D-CT was better than 2D-CT and conventional X-ray plain film in diagnosis of fractures in condyle and coronoid process. Conventional X-ray plain film was poor in diagnosis of the maxillary fractures.2D-CT and 3D-CT were similar in diagnosis of the maxillary fractures.3D-CT showed the jaws fractures directly and stereoscopicly.

结果：对于下颌骨体部、角部和升支骨折，三种影像学都能很好的显示，对于髁状突和喙突骨折，三维CT检查优于常规X线和二维CT；常规X线显示上颌骨骨折较差，而二维CT和三维CT显示的准确性比较接近。

These catalysts were evaluated by a liquid phase hydrogenation of crotonaldehyde to crotyl alcohol and characterized by X-ray diffraction, transmission electron microscopy, and X-ray photoelectron spectroscopy.

采用沉积－沉淀法制备了纳米Au/TiO2催化剂，以X射线衍射、透射电子显微镜、X射线光电子能谱等手段对催化剂进行了系统的表征，并考察了该催化剂在巴豆醛液相加氢制巴豆醇反应中的催化性能。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。