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Cisterna longitudinal fissurae cerebri and cisterna lateralis fossae cerebri were increased significantly after the age of 50, and the changes of their sizes had pratical significance on judging the sizes of subaracnoid cistern and encephalatrophy.

50岁以后大脑纵裂池和大脑外侧窝池明显增大，这两个池的大小对脑池的大小和有无脑萎缩的判定有实用意义。

The results show that with the increase in milling time, the crystal sizes of W-Cu milled powder will be finer, while the undersaturation solid solution will generate, the crystal sizes of sintered alloy will grow up, holes will reduce and the relative density will reduce and approach to full density.

结果表明，随着球磨时间的增加，钨铜球磨粉末晶粒尺寸得到细化，且有不饱和固溶体产生；烧结合金晶粒尺寸长大，孔洞减少，相对密度增大接近全致密。

The sizes of the self-assembly micelles of the amphiphilic block copolymers and the effects werestudied by dynamic light scattering and UV-visible spectrophotometer. The micelle sizes werelargely influenced bythe hydrophobic chain content in the copolymer, the properties of the solvent and the copolymer concentration in the organic phase. The morphology of the micelles was investigated by transmission electron microscopy. Theresults showed that the micelles appeared spheres with inner core and outer shell. The critical association concentrations were determined by pyrene monomer fluorescence probe technology. The degradability of copolymer was studied by the loss of the intrinsic viscosity in the degradation process. The results indicated that the degradation rate of PECL was slower thanthat of PELLA and PEDLLA. The stability of the copolymer micelle dispersion was examined by measuring the critical flocculation concentration, which gradually decreased with increasing the content of thehydrophobic chain in the copolymer. The rheological results showed thatthe viscosity ofthe micelle dispersion with higher content of PEG segments was firstly decreased and then increased with the increasingthe temperature. Otherwise, the variation of viscosity was irregular. The viscosity of the micelle dispersion increased with the increase of the electrolyte (Na 2SO 4) concentrations. Polymer micelles paclitaxel was prepared by self-emulsification/solvent evaporation method and solid dispersion technique with amphiphilic block polymers as the carrier material.

运用动态光散射和紫外分光光度计研究了两亲性嵌段共聚物自组装胶束的粒径及其影响因素，结果表明，自组装胶束的形成机理受制备方式的控制，胶束的粒径随着共聚物相对分子质量或疏水嵌段相对分子质量和有机相中共聚物浓度的增大而增大，随着有机溶剂的水溶性的增强而减小；采用透射电镜观察胶束的形态结构，发现胶束呈具有核壳结构的均匀球形；采用芘荧光探针法测两亲性嵌段共聚物的临界聚集浓度；通过降解过程中共聚物特性粘度的变化研究两亲性共聚物的降解性能，发现与PELLA和PEDLLA的相比，PECL 降解速率较慢；随着共聚物中疏水嵌段含量的增大，纳米分散液的稳定性逐渐下降；PEG含量高的PEDLLA纳米分散液随着温度的升高，纳米分散液的粘度先下降然后增大，反之，没有规律性，且随着电解质Na 2SO 4浓度的增大，体系粘度增大。

Taking particulate material as an example, the effect of micro-homogeneity of the material on the sampling error was investigated. The variation of the analyte contents with the grain sizes, and the possibility of stratifying the population by the grain sizes were studied.

以粒状物质为例研究了物质微观均匀度及其对取样误差的影响，探讨了被测组分含量随颗粒粒度的变化规律，研究了按粒度对物质进行分层及分层取样的可行性。

In the fan delta plain, the sediments, with relatively large grain sizes, jump forward with the thrust of water flow, while, in the front slope, the sediments have relatively small grain sizes, weltering and depositing a-long the slope under the force of gravity, forming typical normal grain size gradation.

扇三角洲平原以水流推力作用为主，沉积物以滚动、跳跃方式搬运，粒度最粗；前缘斜坡以重力作用为主，沉积物顺坡向下滚动、沉积，粒度略细，且具有明显的正粒序特徵；前扇三角洲以浮力作用为主，沉积物为悬移质沉降，粒度最细。

It was concluded that no aging time was the most beneficial to form colloid, when molar ratio of phosphoric acid to antimony was in the range from 0.8 to 1.0 and 1.0 to 1.3, the particle sizes of sol with the concentration of 10 % and 15 % antimony pentoxide by weight are both smaller, and with the molar ratio of 1.0, the average particle sizes are (36±5.6)nm nm and (164±32)nm respectively.

结果表明：氧化锑混合物不进行陈化对胶体五氧化二锑的形成最有利；磷酸与锑的摩尔比分别为0.8～1.0和1.0～1.3时，10%和15%的胶体五氧化二锑胶粒粒径较小，当摩尔比为1.0时，粒径分别为(36±5.6)nm和(164±32)nm。

Image sizes : The sizes listed below determine the maximum dimensions to use when inserting an image into the body of a post.

图像大小：下面所列的尺寸，规定了向文章内容中插入图像时，图像可以使用的最大的尺寸。

Image sizes : The sizes listed below determine the maximum dimensions to use when inserting an image into the body of a post.

图像大小：下面所列的尺寸，规定了文章内容中插入的图像的最大尺寸。

Image sizes : The sizes listed below determine the maximum dimensions to use when inserting an image into the body of a post.

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Moreover, the mesh sizes significance to the results is displayed by calculation and compare of models with different mesh sizes. Besides, we have simulated the cloud-shaped field distribution of moving FAE Devices with a

另外，对靶场实验中回收的破片断口进行了电镜扫描观测实验，反映了金属材料断裂的细观特征，揭示了高应变率材料韧、脆断裂模式及其相互转变的物理机制。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。