征

Results : Ten articles about lobulation sign were included,with 9 independent researches and a total of 747 subjects(including 495 cases of peripheral lung cancer and 252 cases of pulmonary tuberculoma).

分叶征和深分叶征的汇总敏感性分别为0.78、0.50，汇总特异性分别为0.82、0.94，汇总阳性拟然比分别为3.42、6.22，汇总阴性拟然比分别为0.31、0.56，汇总的诊断比值比分别为14.2、13.1。

We suggest that those breast lumps with deep lobulation sign and/or spiculation were belong to malignant appearance and margin signs group,and others(with neither deep lobulation sign nor spiculation) were belong to benign appearance and margin signs group.

具有深分叶和/或毛刺的肿块归为恶性"形边征"组，无深分叶又无毛刺的肿块归为良性"形边征"组。

Cavity, spinous protuberance and inhomogeneous enhancement were more common in the squamous cell carcinoma than that of other types of malignant SPNs (P.05) Conclusion: Malignant SPNs demonstrate abundant CT features in which lobulation and speculation have high diagnostic values.

在螺旋CT扫描中，恶性孤立性肺结节可出现多种征象，其中分叶征和毛刺征的诊断价值较高。

Objective :To assess the overall value of lobulation sign and deep lobulation sign in the differential diagnosis of peripheral lung cancer and pulmonary tuberculoma in CT images.Methods : Firstly , articles about CT differential diagnosis between pulmonary tuberculoma and peripheral lung cancer were selected ,which were published in the period(from January 1990 to December 2008),and useful data were extracted.Then Meta-analysis was done using Meta-disc software,and SDOR value calculated.

方法搜集1990年1月至2008年12月国内外公然发表的关于四周型肺癌与肺结核球CT鉴别诊断的文献，对文献进行筛选，应用Meta-disc软件对符合条件的原始研究进行质量评估、异质性检验，计算阳性似然比、阴性似然比和诊断比值比，最后汇总敏感性和特异性，绘制SROC曲线并计算曲线下面积来综合评价分叶征及深分叶征在CT检查中对于四周型肺癌与结核球鉴别诊断的价值，进行敏感性和特异性分析。

CT appeared patch,small node,light lobulation,peripheral vessel convergence,pleural indentation sign.

CT表现为斑片状、小结节状、轻度分叶状肿块，小毛刺、血管集束征、胸膜凹陷征，大多直径在1.5～2 cm。

Abstract］ objective to study the knowledge of the imaging manifestation of x-ray and ct in peripheral small lung cancer.methods to collect twenty cases with no symptom in early time diagnosed by clinic and to retrospectively analyze their imaging features.results x-ray appeared patch,small node.ct appeared patch,small node,light lobulation,peripheral vessel convergence,pleural indentation sign.most of the diameter was 1.5 to 2 cm,with no mediastinum and pulmonary hilar lymph nodes diversion.furthermore the clinical symptom was not obviously.conclusion to be familiar and handling the sign mentioned above is the key to boost the diagnosis of small peripheral lung cancer.

目的 探讨周围型小肺癌的x线、ct影像学表现。方法收集临床和病理证实的早期无症状肺癌20例，对其影像学进行回顾分析。结果本组早期肺癌x线为斑片状、小结节状。ct表现为斑片状、小结节状、轻度分叶状肿块，小毛刺、血管集束征、胸膜凹陷征，大多直径在1.5～2 cm。无纵隔淋巴及肺门转移，且临床症状不明显。结论熟悉并掌握上述征象是提高小肺癌早期诊断率的关键。

The primary and secondary sexual characteristics are biologically determined, and they constitute a person's maleness or femaleness.

初级性征和次级性征由生物因素来决定，它们造就了男人和女人。

Five months after his inauguration, Shi Lang had overcome many difficulties and substantially improved and enhanced the navy's strength. As the proposed date of manoeuver is approaching, Shi Lang become more and more realized that the initial joint administration mechanism set by the Emperor, is in fact a system with intertwisted pins over each other.

施琅到任5个月后，排除了很多难处，精练水师，但随着出征日期的临近，越发感觉到当初"提，督，将军同征"的旨意将会互相擎制，满族将军们都不熟悉海战，在瞬息万变的海上战场上，将会对部队的实际战斗力构成巨大的威胁，所以想到了"专征"的意图。

Using the method of dividing variables , the solution of elastic dynamics can be changed into the eigen value problem of Hamilton s space differential operator matrix , and the total solution of dual variable s (modal strain and modal strain rate ) can be obtained by .

采用分离变量方法，将弹性动力学解转变为Hamilton空间算子矩阵的本征值问题，对偶变量的全解通过本征解来展开而获得。

We also calculate the spectra of the cavity field numerically via the eigenvalues and the eigenvectors of the mazer master equation for the case with the number of atoms from one to four.

通过求解主方程系数矩阵的本征值与本征矢，我们计算了入射原子团中包含一到四个原子时腔场的光谱与平均光子数，其中着重对单原子与二原子的数值结果作了讨论。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。