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No mediastinal and hilar adenopathy was found. Conclusion The characteristic appearances of PAP on MSCT correspond to its pathological features.The "crazy paving" sign in geographical areas of pulmonary opacification greatly suggests PAP diagnosis.

本文收集经病理证实的6例PAP,综合国内外有关文献,探讨PAP的影像病理学联系及其多层CT表现特征,旨在提高对本病的认识和诊断。

Thickened interlobular septa'looking as the "crazy-paving"'was found in 4 cases in high-resolution CT'correspondence with edema and lymphocyte exudation in interlobular septa in pathological findings.No mediastinal and hilar adenopathy was found. Conclusion The characteristic appearances of PAP on MSCT correspond to its pathological features.

多层CT的问世,使单次屏气时间内完成高质量的全肺薄层扫描成为现实,极大提高了图像的时间和空间分辨率,胸部高分辨率CT还能清晰显示次级肺小叶为单位的肺内细微结构,极大提高了CT在肺部疾病诊断中的应用价值。

As the foundation of ultrasonic testing of composite materials, this thesis is intended to explore in detail a number of features of wave propagation in anisotropic plates, and the following essential problems will be considered:(1) Propagation of plane bulk waves in homogeneous and orthotropic anisotropic media;(2) Lamb wave propagation in multilayered anisotropic plates;(3) Influence of isotropic solid or liquid loading on Lamb wave propagation in anisotropic solid media;(4) Influence of interface layers on Lamb wave propagation in layered anisotropic composite laminates;(5) Dispersion characteristic analysis of attenuation Lamb wave while existing an thin viscous layer which is used for simulating the poor curing in adhesively bonded joints.

作为复合材料超声检测的基础,本文研究了如下国际前沿性的课题:(1)平面体波在正交均匀各向异性媒质中的传播;(2)多层各向异性媒质中Lamb波的传播;(3)各向同性固体或液体负载对各向异性固体媒质中Lamb波传播的影响;(4)界面层对层状各向异性复合媒质中Lamb波传播的影响;(5)胶粘剂未固化而呈现粘弹性时粘接结构中衰减Lamb波的频散特性分析。

Based on statistical analysis of disced rock cores and rockburst about rock mass in exploration adit at the dam site where high ground stressis surrounded the causes of high ground stress are discussed in many respects, combined with characteristics of ground stress field, including the power source condition which is the regional tectonic setting and geological conditions, power storage conditions which is characteristic of lithology and structure of rock mass, power transformation and adjustment which is late reformation of rock mass. It is considered that high ground stress release is synthetical result caused by factors mentioned above.

针对坝区特定的高应力条件下岩体的应力释放现象,包括岩芯饼裂和勘探平硐岩爆发育普遍的特征,在统计分析的基础上,从力源条件-区域构造背景和地质构造条件、能力存储条件-岩性特征和岩体结构条件、后期演化-能量释放、转换与调整等分析的基础上,结合坝区地应力场分布的特征阐述了坝址区高地应力成因,认为坝区高地应力释放现象是上述各因素综合作用的结果。

According to the change regularity of deformation modulus, combining with the rock mass structure characteristic of region studied, using interpolation method, the deformation modulus of rock mass in 36# adit can be deduced. The average vertical deformation modulus of rock mass during 0-70 zone is 39Gpa, and the horizontal deformation modulus of rock mass is 51. 3GPa in nature stress state and 50.8GPa in engineering load state. The average vertical deformation modulus of rock mass during 70-140 zone is 32. 2Gpa, and the horizontal deformation modulus of rock mass is 41GPa in nature stress state and 42. 6GPa in engineering load state. It will be a good reference of engineering design and evaluation.

9根据节理岩体变形模量变化规律,结合研究区岩体的结构特点,采用插值的方法对36号平硐岩体进行变形模量的推测,得到0-70段岩体的平均铅直向的变形模量为39GPa,水平向的变形模量:天然应力状态下为51.3GPa,工程荷载作用下为50.8GPa;70-140段岩体的平均铅直向的变形模量为32.2GPa,平向的变形模量:天然应力状态下为41GPa,工程荷载作用下为42.6GPa,这为工程设计、评程设计、评价等提供了必要的参考。

First, may from the Western law thought angle of view cognition method society standard idea; Next, may carefully examine the economic rules and regulations from the legal rational angle of view the social standard characteristic; Once more, may from the adjacent discipline angle of view exploration economic rules and regulations social standard connotation.

首先,可以从西方法律思想的视角认知法的社会本位理念;其次,可以从法律理性的视角审视经济法的社会本位特征;再次,可以从毗邻学科的视角探索经济法的社会本位内涵。

The new method is a combination of characteristic approximation to handle the convection part, to ensure the high stability of the method in approximating the sharp fronts and reduce the numerical diffusion, a smaller time truncation is gained at the same time, and a mixed finite elementspatial approximation to deal with the diffusion part, the sealer unknown and the adjoint vector function are approximated optimally and simultaneously.

此方法即为对方程的对流项沿流体流动的方向即特征方向进行离散,从而保证格式在流动锋线前沿逼近的高稳定性,消除了数值弥散现象,并得到了较小的时间截断误差;另一方面,对方程的扩散项采用混合元离散,可同时高精度逼近未知函数及其伴随向量函数,理论分析表明,此方法是稳定的,具有最优的L~2逼近精度。

In the second chapter, the problem of the optimal inputting rate control for a class of competitive population dynamics system with age-structure is discussed. By means of characteristic line, Gronwall Lemma, Bellman Lemma, adjoint system and so on, the Lipschitz continuity properties of the system in terms of the control variable is certificated, and the necessary condition of the optimal control is obtained.

第二章讨论了一类具有年龄结构的竞争种群系统最优输入率控制问题,综合应用特征线法,Gronwall引理,Bellman引理,共轭系统等知识,证明了系统解关于控制变量的Lipschitz连续性,给出了控制为最优的必要条件。

The formal solution of partial differential equations is given on characteristic line, the existence of the optimal control is proven by using Ekeland\'s variational principle, Gronwall Lemma and adjoint system, then the necessary condition of optimality is obtained by means of the conception of normal cone.

用特征线法表示出偏微分方程的形式解,利用Ekeland变分原理,Gronwall引理和共轭系统证明了最优控制的存在性,并借助于法锥概念得到了最优控制的必要性条件。

Its characteristic is that the penalty is suspending not terminating at the same time of adjudgment, so it is still possible to resume.

其特点是在判刑的同时宣告暂不执行,但在一定时间内保留执行的可能性。

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However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。