多层的

Abstract］ Objective To evaluate the value of spiral CT dynamic contrast-enhancement scanning on pulmonary embolism by analysing the CT appearance of pulmonary embolism restrospectively.Methods Collect and analyze the appearance in multi-slice spiral CT of 24 patients with pulmonary embolism,especially the embolismic index,the involved proportion of central pulmonary arteries,the presenting proportion of bronchodilation and pulmonary infarction.

目的 回顾性分析肺动脉栓塞的CT表现，探讨层螺旋CT动态增强扫描对肺动脉栓塞的诊断价值方法搜集经多层螺旋CT动态增强扫描确诊的肺动脉栓塞24例，回顾性分析其CT表现，重点分析肺动脉栓塞指、中央肺动脉受累比例、有无支气管扩张显示、是否合并肺梗死。

msct triphasic incremental scanning is more sensitivity in the diagnosis of fibromembranous gastric carcinoma.

多层螺旋ct多期增强扫描，诊断浸润型胃癌的敏感性较强。

Taking the Wuhan Theater as core, based on the characteristic bars and performance places, a high-level recreational and cultural center will be built; on the plot opposite to the Fu-mart there will be a playground for freestyle bike and hip-hop dance; by the Jianghan road and the Music King Performance Hall a gardenesque underground parking lot is planed; the Huangshi road will be widened and an outdoor gallery will be set on its eastern side, with a plaza at the road mouth for street artists.

A、激越飞扬，演艺天堂——夜汉口激越飞扬区以武汉剧院为核心景观，作为标志性的文化活动场所，利用其文化的辐射力，整合区域内酒吧、演艺场所，展现大汉口夜的魅力。拟在江汉路口、大福源对面临街区建设青少年花样自行车运动场和街舞活动场。轻轨江汉路站附近和音乐王对面配置园林式地下停车场或多层停车楼。按规划拓宽黄石路，在黄石路口东侧结合低层建筑拆迁，扩大建设黄石路画廊，路口拐角处开辟小型街头画家广场。

Objective To assess the clinical application of multi slice CT in the diagnosis of gastric tumors, and to compare CT findings with GI and gastroscopic results.

资料与方法对 2 3例经上胃肠道钡餐造影和胃镜检查诊断为胃肿瘤的患者行多层螺旋CT容积扫描，分别以多平面重建技术、3DCT技术(包括SSD和RaySum)和CT仿真胃镜技术进行后处理。

A multi-layered mask includes a lithographically patterned photoresist and an un-patterned organic antireflective coating formed over a substrate layer to be etched.

多层掩模包括形成在待刻蚀的衬底层上平版印刷图形化的光致抗蚀剂和未图形化的有机抗反射涂层。

Then through the DDM, the method of lines combined with the finite-difference frequency-domain method is used for the parameter extraction of multilayered multiconductor interconnections.

然后利用区域分解法平台，将直线法和有限差分结合起来，用于提取多层介质中具有任意截面形状多导体互连结构的电磁参数。

Electron microscopy showed that the dispersions formed had a range of structures, including unilamellar, multilamellar, and multivesicular liposomes.

电子显微镜显示，分散形成了一系列的结构，包括单层，多层和多脂质体。

Electron microscope observations showed that the liposome suspension was heterogeneous and the particle size ranged from 20 nm to 700 nm with a average diameter of 163 nm. The vesicles showed unilamellar and multilamellar structure which consisted of several concentric bilayers.

电镜观察表明，该脂质体多呈球形的单层或多层结构，脂质体粒径分布均匀，粒径范围20-700 nm，平均粒径163 nm，主要粒径分布位于50-200 nm(84.80%)。

According to regionalizing indicators of average annual accumulated temperature above 20℃, average annual freezing index, precipitation in freezing period and average annual precipitation in nonfreezing period, the macro layer of the regionalization, China climatic regionalization for highway, were suggested through methods of cluster analysis, division based on indicator and layers superposing, which included 10 first-level regions and 24 second-level regions. It summarizes that climate of China affects highway in macro level.

利用多指标系统聚类分析、指标划分和图层叠置等方法，以累年年≥20℃积温、累年年冰冻指数、累年年非冰冻期降水量以及累年年冰冻期降水量为区划指标，对处于方案体系宏观层的中国公路气候区划进行了具体划分，提出了由10个一级区、22个二级区构成的两级区划方案，为了解中国气候对公路综合影响的异同性以及影响程度差异提供了一个平台。

After 100 h thermal exposure at 1050 ℃, the surface Al2O3 scales are continuous, dense, and only very little amounts of alloy elements diffused from the substrate is detected in the overlayer.

一步法制备能提高含扩散阻挡层多层体系的界面结合强度， DB在恒温和循环氧化过程中能保持很好的抑制元素扩散的能力。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。