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objective to analyze the ct appearance of thyroid carcinoma and the differential diagnosis of various thyroid disease.methods 83 cases of thyroid carcinoma and 119 cases of various benign disease with surgical and pathologically proved were analyzed retrospectively.results the ct findings of 83 cases of thyroid carcinoma include:ill defined nodules boundary (n=62),irregular necrosis(n=59),cystic(n=23),"peninsula" enhancing tubercles around the tumour(n=25),"mastoid" tubercles around the tumour(n=11),calcification(n=55) including large scale(n=27) and local(n=28),trachea invasion(n=15),neck or supraclavicular lymph node metastasis(n=27),the accurate of ct to differentia benignancy from malignancy on thyroid disease was 93.6%(189/202).conclusions "peninsula" enhancing tubercles was the characteristic sing of thyroid carcinoma,"mastoid" enhancing tubercles or large scale calcification was the affirmative sign,the ct signs was vary useful to differentiating thyroid disease.

摘 要］目的：分析甲状腺癌的ct表现及鉴别诊断要点。方法：回顾性分析经手术病理证实的83例甲状腺癌和119例甲状腺良性病变的ct表现，归纳总结不同病变的ct特征。结果：83例甲状腺癌中：边界不清62例，不规则坏死59例，囊性变23例，出现"半岛状"强化结节25例，"乳头状"强化结节11例，钙化55例(其中弥漫性钙化27例、局灶钙化28例)，侵犯气管15例，颈部或锁骨上淋巴结肿大27例，ct对甲状腺病变的良恶性鉴别诊断符合率93.6%(189/202)。结论："半岛状"强化结节是甲状腺癌的特征性表现，"乳头状"强化结节及弥漫性钙化可做为甲状腺癌的肯定性征象，掌握各种甲状腺病变的ct表现特点，对病变的定性诊断及鉴别诊断具有重要意义。

The course is well maintained with clearly defined Kikuyu fairways that are amongst the best all year round in the country, tidy tee boxes and Bent grass greens.

球场的球道维护於该国是全年最好的，整洁的发球台和本特草果岭。

By introducing substitutents to a definite location of the benzene ring, the location and assembling fashion of nitrobenzene was defined.

通过在硝基苯的特定位置引入取代基我们可以确定硝基的位置和硝基苯的组装方式。

The primary problems were following: 1 the bequeathal stock did not disclose or renew the narration of raising capital by floating shares when they issued incremental stocks; 2 the rules of content and format on information disclosure of listed companies defined careless and simple special risk items. All the flaws did not benefit investors and others who needed external information to distinctly evaluate the risk factors and the risk degree.

那么笔者利用第三章的篇幅，重点介绍和分析了我国上市公司特别风险披露的现状，主要表现在历史遗留股增发股票操作时未尽披露或者补充披露招股说明书义务和"信息披露准则"对要求披露的特别风险项目界定过于粗略和笼统，不利于投资者和其他外部信息利用者准确评估上市公司的风险因素及风险度等。

If we have enough data in training set, the nearest neighbor graph that is defined by LPP can provide the best approximation to geometrical structure of image data.

在检测集的分布比较均匀的情况下，LPP算法定义的最近相邻图可以很好地模拟数据集的几何结构。

In probability theory and statistics, the beta distribution is a family of continuous probability distributions defined on the interval [0, 1] parameterized by two positive shape parameters, typically denoted by α and β.

在概率论与统计，贝塔分布是一个连续概率分布上定义的区间[ 0 ， 1 ]参数由两个积极的形状参数，通常是指由α和β。

In a local coordinate system, the long-range orientational parameter S and the phase-induced biaxiality order parameter Δ are defined.

采用胆甾相液晶的格胞理论，运用一定的统计方法，导出分布函数，定义序参数张量，由此推导出自由能表达式。

Bibber corporations, defined by their annual income, allocate more resource to web-based communications and therefore, leading to stronger web effects to investors.

推测应是当企业营收好时，会在网站建置与维护上花费较多的成本。

It is proved that there is a bijection between the set of fuzzy filters and the set of fuzzy congruence relations. Afterwards, the notion of normal mapping from a residuated lattice to another is defined .

本章的第三节引入了两个剩余格之间的正规映射，讨论了正规映射的一些性质，证明了由正规映射诱导的Zadeh型函数是保Fuzzy滤子的映射。

The isomorphism relation may also be defined for all these generalizations of graphs: the isomorphism bijection must preserve the elements of structure which define the object type in question: arcs, labels, vertex/edge colors, the root of the rooted tree, etc.

同构的关系也可能会被定义为所有这些概括图：同构bijection必须保存的内容结构，确定了对象类型的问题：弧线，标签，顶点/边缘的颜色，根的根树，等

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。