查询词典 be X-rayed

The thinner the thickness of porous alumite film is, the more uniform Co distribution will be in the anodic film.

另外，纳米级微孔内Fe—Co合金的X射线衍射分析表明，Co是以固溶体的形式存在于α—Fe的晶格之中的。

TEM shows that drying by direct heating might result in hard aggregation of the tourmaline powder, while hard aggregation might be avoided by azeotropic distillation. Raman spectroscopy reveals that there are O_H and C_H on the surfaces of the tourmaline powder obtained by azeotropic distillation, which indicates that butoxy is chemically adsorbed on the surfaces of tourmaline particles, but not adsorbed on those formed by direct drying. X_ray powder diffraction shows that the intensity of diffraction peaks decreases after grinding. There is no damage to the tourmaline crystal lattice in the process of direct heating, azeotropic distillation, or ultrafine grinding.

透射电镜分析结果表明，直接加热脱去水或正丁醇会使电气石超细颗粒发生硬团聚，而共沸蒸馏法则可有效防止硬团聚的产生；拉曼光谱结果表明，共沸蒸馏法制备的电气石粉末表面存在O—H和C—H键，说明正丁醇在颗粒表面为化学吸附，而直接干燥法得到的电气石粉末表面则没有；X射线粉晶衍射结果表明，研磨过程降低了粉末衍射峰的强度，但直接加热干燥和共沸蒸馏干燥均未破坏电气石的晶格结构。

It is indicated that the hexagonal calcium hydroferrite is a kind of high scattered calciferous compound. The interplanar spacing of hexagonal calcium hydroferrite is wide. The desilication activity of hexagonal calcium hydroferrite is higher. And the loss of alumina can be reduced.

结合X射线衍射分析讨论水合铁酸钙的脱硅机理，提出水合铁酸钙是一种高度分散的含钙化合物，其晶面间距较大，脱硅活性较高，并可大幅度降低铝损。

By the testing means of electron-spectroscopy for chemical analysis , thermogravimetric analysis , differential scanning calorimetry , transmission electronmicroscopy , the results have shown that the emulsion polymerization in situ in the presence of nano-particle of calcium carbonate can happen smoothly and successfully and the surface of nano-particle of calcium carbonate have been capsulated by polymer of acrylates, which prevent from the agglomerating of nano-particles of calcium carbonate. Because the copolymer of acrylate has good compatibility with some plastics such as PVC, ABS, AS and so on, so the dispersion of nano-scale calcium carbonate as nanometer size in these plastics can be reached more easily and the effects of nanometer can happen.

通过X射线光电子能谱、热失重分析、动态扫描量热分析、透射电子显微镜等手段，证实在纳米碳酸钙原生粒子存在下，可以进行丙烯酸酯类的原位乳液聚合，乳液聚合顺利，纳米碳酸钙表面被丙烯酸酯类聚合物所包覆，使纳米碳酸钙粒子间的团聚不易发生，同时由于丙烯酸酯类聚合物与PVC、ABS、AS等极性聚合物具有较好的相容性，从而使纳米碳酸钙在聚合物基体中能达到纳米状态分散，从而发挥纳米效应。

A matrix is said to be centrosymmetric matrix if = for all .

摘 要：设矩阵，如果，则称X是中心对称矩阵。

After posterior lumbar instrumented fusion, radiographic changes suggesting disc degeneration appear homogeneously at several levels cephalad to fusion and seem to be determined by individual characteristics.

使用器械的后路脊柱融合术后，X线摄片改变提示靠近融合节段的近端的的几个相邻节段都会发生退行性改变，这种改变可能与个体因素有关。。

After posterior lumbar instrumented fusion, radiographic changes suggesting disc degeneration appear homogeneously at seeral leels cephalad to fusion and seem to be determined by indiidual characteristics.

使用器械的后路脊柱融合术后，X线摄片改变提示靠近融合节段的近端的的几个相邻节段都会发生退行性改变，这种改变可能与个体因素有关。。

The nonunion was judged to be healed when bridging callus formation on both radiographic views was observed on at least 3 of 4 cortices.

骨不连的愈合为观察者均看到桥接骨痂骨在X线片中有至少在3至4个皮质形成。

Ca is widely abundant in nature and its rodioisotope 41 Ca is a cosmogenic nuclide with a half\|life of 10 5 years. However, the 41 Ca/ 40 Ca ratio in natural samples is very low and can only be measure d by accelerator mass spectrometry. The application of 41 Ca is ve ry i mportant not only in the life science but also in geological dating, global envi ronment change studies and astrophysics.

1 引言Ca在自然界中广泛存在，它不仅是人体中含量最丰富的元素之一[1] ，也是众多其他物质的组成部分。41Ca(半衰期为 1.0 3× 10 5a)属于Ca的放射性同位素中的一种，其衰变方式为轨道电子俘获，只发射3.3keV的X射线，天然样品中41Ca 40 Ca的值很小。

According to the least-squares procedure the thickness inaccuracy and the errors of roundness,cylindricity,and coaxiality will be obtained.

整机在计算机控制下，实现X，Z，C方向的运动。测量开始前，在旋转工作台1上用夹具2将弹体3固定，两个激光位移传感器6和7，安装位置如图所示。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。