无特征的

Methods Eight cases of cerebral sparganosis treated at Huashan Hospital between 1982 and 1997 were analyzed retrospectively.

结果本病的病理特点为：1蚴虫虫体为实体，无体腔，具特征性体壁；2蚴虫虫体内散在分布的同心圆性圆形或椭圆形的石灰小体及单个肌纤维；3脑内有新旧不一的多发性小脓肿。

It was found that halite was closely cemented with soil particles, thenardite (Na_2SO_4) was transformed from mirabilite (NasSO_4·VlOH_2O) by dehydration, and the glanberite [Na_2Ca (SO_4)_2] was formed by calcium sulfate and sodium sulfate. These salt crystals separated were clear, without any mixture.

扫描电子显微镜的照片，展示出某些盐类结晶的自然特征，它们是：与土粒胶结紧密的石盐、由芒硝(Na_2SO_4·10H_2O)脱水转变成的无水芒硝(Na_2SO_4)、或由硫酸钠、硫酸钙形成的复盐——钙芒硝Na_2Ca(SO_4)_2。

The punching shear capacity and deformation property of the joint with various unbonded prestressed reinforcements are also discussed.

通过理论分析和试验研究，阐述了配置无粘结预应力筋的混凝土板的破坏形态和特征，并讨论了预应力钢筋的不同布置方式对节点冲切承载力和变形的影响。

Abstract］ objective to evaluate the distinctive clinical value of magnetic resonance urographymru）in the diagnosis of primary ureteral carcinoma.methods to compare the accuracy of diagnosis of mru with ultrasonography,urography,retrograde ureteropyelography and ct,diagnostic imaging and progress of ureteral carcinoma were analyzed in twenty-four cases from 2000 to 2006,twenty cases had mru examinations.the original preoperative diagnostic reports of various imaging facilities were analyzed on account of the results of operation and pathology.results mru could clearly show the obstructive location of ureter.with regard to the ureteral carcinoma,accuracy of the location diagnosis was 100%.mru was superior to ulstrasonography,kub+ivp,ureteropyelography and ct we used to apply.conclusion comparing with other diagnostic imaging facilities,it has an important value in highly efficient,accurate location,safe,noninvasive and so on with mru,which can be used to show the features of primary ureteral carcinoma and has a wider scope of clinical application.

目的 探讨磁共振水成像技术在原发性输尿管肿瘤中的临床诊断价值。方法分析2000～2006年24例原发性输尿管肿瘤的影像学诊断结果，并基于术中所见和病理报告，将磁共振水成像技术20例）与超声24例）、泌尿系造影24例）、逆行造影15例）、ct(19例）的确诊率相比较。结果 mru能清晰显示输尿管的梗阻部位，定位诊断准确率为100%，梗阻病因确诊率高于b超、泌尿系造影、逆行造影和ct检查。结论与其他影像诊断方法相比较，磁共振水成像在显示原发性输尿管肿瘤特征方面具有效率高、定位准确和安全无创等重要价值，而且有更广泛的临床应用范围。

Since development of volcanic layers and volcanic mounds in basement in Tazhong area, using seismic exploration is usually difficult to acquire better seismic data in the interior of vocatine and below(mainly caused by shield of volcanic layer), but using MT exploration may not produce such problem, because the electromagnetic wave does not suffered from the shield of higher resistance layer; especially the volcanite has the feature of higher magnetic susceptibility and impedance, which provides excellent c...

由于塔中地区的火山岩层及基底火山岩丘发育，采用地震勘探方法通常难以在火山岩内部及其以下获得比较好的地震资料(主要是火山岩层的屏蔽作用)，而利用MT勘探则无此问题，因为电磁波不受高阻地层屏蔽，尤其是火山岩具有高磁化率和高电阻率的特征，从而为在该区应用大地电磁和磁力方法识别火山岩薄层及基底火山岩丘提供了得天独厚的条件。

Curvature is the result of geometric structure in image; a new third order partial differential equation is proposed which transports curvature information along isophotes. The third order POE is morphologically invariant. Helmholtz vorticity equation which annihilates vorticity and third order POE which forward transports curvature information are coupled to be a new model.

曲率是图像几何特征作用的结果，本文提出沿等照度线方向传输曲率信息的三阶形态学不变偏微分方程，并将抑制涡量的无粘亥姆霍兹方程和正向传输曲率信息的三阶偏微分方程耦合。

Hill-reservoir has a short retention time; its phytoplankton community was characterized by low abundance and no obviously dominant species. The zooplankton was predominated numerically by rotifer and nauplii.

山地型水库具有较明显的河流特征，浮游植物的种类数和细胞密度均较低，有较多的河流种，无明显优势种；浮游动物的种类和数量很低，以轮虫和桡足类幼体为主。

Schematizing the southern Yellow sea as an constant water depth and semi-enclosed rectangular bay, the evolution trends of tidal amphidromic system of M2and variation features of coast tidal range are analyzed primary under the condition of 3 and 5 meter rise of sea level respectively.

将南黄海概化为一等深矩形海域，初步研究了在海平面上升 3m 和 5m 条件下该海域旋转潮波系统的演化趋势，继而分析了沿岸潮差变化特征。初步分析研究表明：随着海平面上升，该海域 M2 分潮的无潮点有向东南方向偏移的趋势，受此影响，沿。。。应用海湾和半封闭矩形海域改进的 Taylor 问题的解研究海平面上升对 M2 分潮旋转潮波系统及沿岸潮差的变化。

Three days after local cerebral infarction , the amounts of catecholamine-containing varicosities and the concentrations of CA in the varicosities in cortices of both sides were markedly reduced, and an aggregation of a large amount of CA granules which were of different fluorescent feature from tha...

局壮性脑梗塞三天后，双侧大脑皮质内CA膨体的数量与膨体内CA的浓度均显著减少，梗塞灶边缘区可见大量CA颗粒聚集，其荧光特征与正常皮质内的CA颗粒不同；双侧大脑皮质内的去甲肾上腺素含量显著减少，多巴胺含量无明显变化。

In tested frequency range, the damping ratio keeps constant under different vibration frequency, which is verified again that the concrete is not the ideal sticky elastic material whose dissipation characteristic is correlative with frequency.

在实验的频率范围内，不同振动频率下的阻尼比近似保持常数，再次证实混凝土并非耗能特性与频率相关的粘弹性材料；砼构件的动刚度随振动频率变化不大，表明其力学参数无明显频变特征。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。