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As a key step of the synthesis, the Friedel-crafts acylation was researched. And the optimal operation variables were determined through orthogonal experiment: when 0.lmol acetanilide, 0.26mol aluminum chloride, 0.12mol propionyl chloride and 200ml carbon disulfide are introduced, and the reaction time is 5 hour, the yield can be up to 57.3%. The solid super acid catalyst was preliminary studied. Four solid super acid catalysts were prepared to take the place of aluminum chloride, and it was indicated that AlCl3 acidic resin can better catalyze the Friedel-Crafts reaction of acetanilide.

对合成路线中的Friedel-Crafts酰基化反应进行了研究，运用正交实验设计确定了最佳工艺条件：当乙酰苯胺用量为0.1mol时，AlCl_3用量为0.26mol、丙酰氯用量为0.12mol、溶剂用量为200ml、反应时间为5h，产率可达到57.3％；对于固体超强酸催化剂进行了初步研究，合成了四种催化剂，其中负载AlCl_3强酸性树脂对于乙酰苯胺的Friedel-Crafts酰基化具有一定的催化活性。

The results radicate that the radioactive matter containing of domestic solid wastes in living district of Pearl River Refine Plant and r-radiation level of radioactive solid wastes and the part of radioactive matter in landfill site's surface is higher than that in city domestic wastes and world soil average level reported by the UN...

结果珠江冶炼厂居住区固体废弃物及填埋场区r辐射水平和部分放射性物质含量高于市区生活固体废弃物。

During the surgery, the lesion was found to be a solid tumor. A surgical wedge biopsy was done and purulent dark yellow fluid was drained from the center of the mass. Histologically, there was a solid pattern of rhabdoid and anaplastic round or oval cells haphazardly arranged with poor differentiation. Immunohistochemical staining was positive for vimentin, a mesenchymal marker; the reticulin staining was consistent with carcinoma.

我们实施了手术切片及肿瘤中心脓状物引流，病理组织学上，我们发现了不规则或未分化的横纹状、圆形及椭圆形细胞；免疫组织染色上，细胞广泛的对非上皮标记vimentin呈阳性反应、且其reticulin染色呈现出腺癌的形式；肉瘤及腺癌的特色皆可在切片中看到，所以我们的诊断是类肉瘤性线癌。

Rhombohedral ITO solid solution was metastable in air and it would be transformed to cubic ITO solid solution by heat-treatment.

刚玉型结构ITO固溶体在空气中处于亚稳态，并且在加热的条件下可以转变为萤石型结构ITO固溶体。

The transformation from rhombohedral ITO solid solution to cubic ITO solid solution started at 578℃ and ended below 800℃, and it exhibited a weakly endothermic behavior.

刚玉型结构ITO固溶体向萤石型结构ITO固溶体的转变起始于578℃，在800℃以前转变终止并且表现为一种弱吸热行为。

While Bush started out in 2001 on a tetchy and rivalrous note with China, since the 9/11 attacks revealed an immediate and vicious enemy the Chinese-US relationship has been put on a more solid footing than ever; far more solid than the still fragmentary Chinese-European one.

虽然2001年小布什刚上任时对中国充满了愤怒和敌对，但是自从911事件引出了一个紧迫而邪恶的敌人之后，中美关系就打下了空前牢固的基础，比支离破碎的中欧关系牢固多了。

In this thesis, the reaction of methanol conversion into hydrocarbons on HZSM-5 and SAPO molecular sieves, which is of great importance to industry, is selected as probe reaction to get deeper insights into the structure of solid catalysts and the interaction of reactants with catalysts during adsorption and catalytic reaction by solid state NMR.

本论文主要以固体NMR为研究手段，以甲醇制烃类作为探针反应，详细研究了催化剂的结构、吸附过程中反应物与催化剂的相互作用、反应过程中反应物与催化剂的相互作用，主要取得了如下结果： 1 原位MAS NMR实验结果表明，甲醇制烃类的过程是通过&碳池&机理来实现，&碳池&的组成随反应的进行而变化，在反应前期，&碳池&由饱和烃类构成，随着反应的进行，饱和烃类和不饱和烃类共同组成&碳池&。

These 375 patients had a median age of 50.57±10.46(range,19-72) with 87.4%HBsAg positive and 4.3%anti-HCV antibody positive;The apparent peak incidence age was 40～60 years old,and the ratio of male to female was 10.7:1;The 3 and 5 year postoperational survival rate were 52%and 38%;The tumour numbers(p=0.000),tumor size(p=0.025),histological pattern (p=0.000),nuclear features(p=0.000),differentiation(p=0.001) and vascular invasion(p=0.000) were significantly correlated with prognosis.The postoperational survival time of thin trabeculae pattern,compact pattern and pseudoglandular pattern were significantly longer than that of thick trabeculae, scirrhous pattern,and solid patternp＜0.009the postoperational survival time of 1 and 2 grade based on nuclear features were significantly longer than that of 3 and 4 grades(p=0.000The small cell variant,osteoclast-like giant cell variant, and spindle cell variant were mainly composed of thick trabeculae pattern and solid pattern,which were significantly different from that of clear cell variant.

结果1。本组资料显示肝细胞癌发病年龄19～72岁，平均50.57±10.46岁，发病高峰年龄40～60岁，男女比例为10.7：1；HBsAg87.4%，anti-HCV抗体4.3%；术后3年生存率为52%，5年生存率为38%；肿瘤数目(p=0.000)、肿瘤大小(p=0.025)、组织学结构类型(p=0.000)、核分级(p=0.000)、分化程度(p=0.001)及血管浸润均(p=0.000)与预后明显相关；其中组织学结构类型中细梁状型生存时间与致密梁状型和腺样型无明显区别(p＞0.05)而明显高于粗梁状型、实性型和硬化型(p≤0.009)，硬化型生存时间与实性型之间无明显区(p＞0.05)而明显低于其余各型p≤0.006核分级1级与2级生存时间无明显区别(p＞0.05，核分级3级与4级生存时间无明显区别(p＞0.05)，而核分级3级生存时间明显低于2p=0.000小细胞型、巨细胞型和梭形细胞型主要由实性型和粗梁状型组织学结构类型构成，明显不同于透明细胞型(主要由细梁状型和粗梁状型构成(p≤1.006)。2。

A set of apparatus for determining solid-liquid equilibrium data at atmospheric pressure has been established. The solubility of sebacic acid in water, 20% ethanol aqueous solution, 50% ethanol aqueous solution, 80% ethanol aqueous solution and ethanol were determined. Wilson equation, ideal thermodynamics equation and λh equation were applied to describe solid liquid equilibria data.

建立了一套常压固液平衡测定装置，测定了癸二酸在水、20％乙醇-水溶液、50％乙醇-水溶液、80％乙醇-水溶液、无水乙醇体系中的溶解度，并用Wilson方程、热力学简化方程和λh方程模型对实验数据进行关联。

Then, from the solid—liquid two phase flow theory, considering all the forces acted on the solid particle, the movement equations of single spheric particle are established.

然后，从固液两相流理论出发，导出单个球形泥沙颗粒的运动方程，由此建立泥沙颗粒的随机运动模型。

The good news is that after formatting from the command line to FAT32 (format /fs:fat32 /a:4096 drive:) all but one of the problematic games that I tested work perfectly.

好消息是，从指挥线后格式化了FAT32(格式/曾荫权：了FAT32/答：4096年径：)所有问题，但其中的游戏测试工作，我很好。

In Amsterdam. He is a Dutch painter, draftsman, and etcher of the 17th century, the greatest artist of the Dutch school, a master of light and shadow whose paintings, drawings, and etchings made him a giant in the history of art.

伦勃朗是一位17世纪画家、绘图家、版画家，荷兰学派的最伟大艺术家，他的明暗法的大师，他的绘画、素描和版画使他成为一位艺术史上的巨匠，其画作体裁广泛，擅长肖像画、风景画、风俗画、宗教画、历史画等。