螺旋

Methods 56 cases with intermediary and late hepatic cancer confirmed by clinical,pathological measures and spiral CT from June,2000 to July,2003,were carried on Asteion spiral CT examination in multic-plase and enhancement methods to observe the hemic supply and dynamic change in tumors before,during and after intervenient treatment of the cancers.

搜集我院2000年6月～2003年7月经临床、病理和螺旋CT综合诊断的56例中晚期原发性肝癌。采用日本东芝Asteion螺旋CT机，经多期增强扫描对原发性肝癌介入治疗前、后，观察瘤体内血供动力学的变化。

Notably, compounds 12–14 can be described as a 3D open–framework with nano–channels, compound 15 can be described as a 3D open–framework with double helical channels, while compound 16 can be described as a 3D heterochiral coordination polymer with double helical channels, which can be obtained by spontaneous resolution from the racemic phosphonic acid.X–ray powder diffraction analysis shows that compound 16 is a pure phase. Surface photovoltage spectroscopy of compound 16 indicates that it possesses positive SPV response in the range of 300–600 nm and shows p–type semiconductor characteristic.

值得注意的是，化合物12-14为具有一维纳米孔道结构的三维开放骨架结构，化合物15是具有双螺旋孔道的三维开放骨架结构，而化合物16是外消旋的有机膦酸配体通过自发拆分而形成的具有双螺旋孔道的多手性三维开放骨架结构。X-射线粉末衍射分析表明化合物16为纯相；化合物16的表面光电压光谱分析中，在300-600nm范围内有3个正的光(来源：ABC论文12网www.abclunwen.com)伏响应带，表明它具有p型半导体的特征；化合物16的诱导表面光电压谱进一步确定它的p型半导体的特征；磁性研究表明，化合物16中两Mn原子之间存在弱的反铁磁相互作用。

Although the structure contained one molecule per asymmetric unit, the functional unit of CnbG proved to be hexameric with 32 symmetry.

结构表明，不对称单位包含一个分子，，每个分子由63个氨基酸残基组成，形成β-α-β模体，此外在序列中央有一个310-螺旋，C-末端也有1个小的α-螺旋。

Objective To evaluate the manifestations of the spiral CT and the treatment of renal hamartomas with plenty of blood.Methods The spiral CT findings and the treatment in 12 cases of hypervascular renal hamartomas with histopathologically proved were analyzed,and contrasted with pathology retrospectively.

目的 探讨血供丰富的肾错构瘤的螺旋CT表现及治疗方法回顾性分析12例经手术病理证实的血供肾错构瘤的螺旋CT表现及治疗方法，并与病理进行对照研究。

Objective To analyze the contrast enhancement appearances and patterns on dual phase helical CT scans in 21 cases with hepatic hypervascular metastases, and to discuss the value and pitfall of helical CT in diagnosing hepatic hypervascular metastases.

目的 分析 2 1例共 6 3个富血供肝转移灶在螺旋CT双期扫描中的表现，探讨螺旋CT在该病诊断中的价值和限度。

Therefore, it is very important for improving our country gear product quality and competitive power in international marketplace that study the method of spiral bevel and hypoid gears measurement.

因此，研究螺旋锥齿轮的测量方法，开发具有自主知识产权的螺旋锥齿轮加工精度控制系统，对提高我国齿轮制造企业的产品质量、增强我国齿轮产品的国际竞争力都具有十分重要的意义。

Purpose To evaluate the diagnostic value of thin-slice enhancement CT with hypotonic water-filling method in gastric carcinoma.

目的：探讨低张水充盈薄层螺旋CT增强扫描对胃癌的诊断价值。方法：对32例胃癌患者进行低张气钡双对比造影及低张水充盈薄层螺旋CT增强扫描，并与术后病理相对照。

As we know, spiro-conjugated compound 1',3',3'-trimethyl-6-hydroxyspiro[2H-1-benzopyran-2,2'-indoline] is one of thesignificant photochromic species, the structure and spectrum ofthe compounds 1',3',3'-trimethyl-6- hydroxyspiro[2H-1-benzopyran-2,2'-indoline] and its isomers have studied.

三。研究了一类重要的光致变色物质之一螺旋共轭化合物1′，3′，3′-三甲基-6-羟基螺旋[2H-1-苯并吡喃-2，2'-二氢吲哚]及其光异构化产物的结构、光谱，并在此基础上，用完全态求和公式自编程序计算了非线性光学系数。

Histochemical study showed animals perfused with Ad-LacZ had intense X-Gal staining in the spiral limous, spiral ligament, spiral ganglion cells and the organ of corti in the perfused cochlea.

然后进行基底膜铺片和耳蜗石蜡切片观察发现，在内、外毛细胞，螺旋韧带，血管纹，Corti氏器以及螺旋神经节细胞均可被染成兰色。

Methods To analyze retrospectively MSCT data of 25 cases of lymphangioma and to summarize ascendancy in the diagnoses and imaging features of MSCT of lymphangioma.

回顾性分析25例淋巴管瘤患者多层螺旋CT 的检查资料，总结多层螺旋CT下淋巴管瘤的影像特征。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。