无结构

To obtain a complete picture about shock formation in non-viscous flow, in the succeeding chapter we investigate the isothermal shocks in adiabatic flows. We find that in this case the shock solution still exists, but the structure and the properties of the solution are greatly different from above even qualitatively. In some region of the parameter space there only exists unstable shock solution and in some region of the parameter space there may exist two stable shock solutions.

为得到完整的无粘流体中激波形成的图象，在接下来的第四章，我们研究绝热流体中等温作为激波条件时的情况，发现此时激波解仍存在，但解的结构和性质甚至在定性上都与前两章有了显著的不同：某些参数空间只存在非稳定的激波解，某些参数空间则会同时出现两个稳定的激波解。

Principle of its structure as shown, via a conveyor belt drive roller and tail roller with the formation of The Promise Ring, up and down a conveyor belt supported by rollers to limit the deflection of the vertical conveyor belt, the tensioning device to provide the required normal operation of a conveyor belt tension.

其结构原理如图所示，输送带绕经传动滚筒和尾部滚筒形成无极环形带，上下输送带由托辊支撑以限制输送带的挠曲垂度，拉紧装置为输送带正常运行提供所需的张力。

With the development of society, more and more sound absorbent material was needed. In this study the characteristics of the binder system containing cement, ceramisite, fly ash and vesicant were investigated.

本文以微孔吸声结构原理为主要设计依据，以抛光砖废料制备的陶粒、膨胀水泥、粉煤灰以及造孔剂、防水剂等为主要原料，采用混凝土成型法成型，研究开发一种无有害成分的环保型吸声材料。

It can show the stenosis section and its relation with the vicinal structure clearly. It has the characteristics of convenience, accuracy and peculiarity.

16层螺旋CT血管成像是首选无创诊断颈动脉狭窄的方法，能清楚显示颈动脉狭窄段及其邻近结构的关系，具有方便、准确、特异等特点。

The specific properties of materials, such as the palate adhesion, dynamic cruor, anti-bacterial and the degradability of lysozyme, were studied, which provide valuable data for further application. The main creative ideas are listed as follows:(1) The water-retention chitosan/poly vinyl alcohol blend fiber was obtained by coagulating in 10％ NaOH/ethanol solution, and the blend and crosslink due to GA can enhance the mechanical properties of fiber;(2) The controlled degradable chitosan/gelatin blend fiber was obtained by solution filature, and the mechanical properties were improved;(3) The N-acylchitosan with the different degree of substitution were successfully prepared, and the relationship between structure and properties was estabilished;(4) By a new solvent system of 6％ NaOH/4％ urea for cellulose, the blood anti-coagulant function films were prepared by blending cellulose with chitin;(5) In the same solvent system above mentioned, the anti-bacterial blend films based on cellulose and carboxymethyl-chitosan were prepared, and the relationship of DS and the anti-bacterial property was concluded;(6) The controlled degradable chitosan films was obtained by the chemical crosslink.

本论文的主要创新点：（1）以NaOH水溶液／无水乙醇为凝固液，采用溶液纺丝法制备出保水性壳聚糖／聚乙烯醇纤维，共混和戊二醛交联极大提高了壳聚糖纤维力学性能；（2）用壳聚糖和明胶共混，以溶液纺丝法制备出可控降解的壳聚糖／明胶纤维，并大幅度提高了壳聚糖共混纤维的干、湿态抗张强度；（3）确立了不同取代度N-酰基壳聚糖的合成方法及其膜的结构与性能的关系；（4）利用纤维素新溶剂6％NaOH／4％尿素制备出抗凝血性纤维素／甲壳素共混膜；（5）利用上述纤维素新溶剂制备出抗菌性纤维素／羧甲基壳聚糖共混膜，揭示了羧甲基壳聚糖取代度与抗菌性能的关系；（6）制备出可控降解壳聚糖交联膜。

The crystallization behavior and crystals structures of copoly (vinylidene fluoride-chlorotrifluoroethylene), which was synthesized with n: n=1: 4, were investigated by DSC, WAXD and FTIR, respectively.

用示差扫描量热法、广角X射线衍射和傅里叶红外光谱研究了偏氟乙烯／三氟氯乙烯单体摩尔比为1： 4的无规共聚物的结晶与晶体结构。

The results show that the propagation delay is less than 1ns, the ratio of input and output impedance is up to 10〓, realizing a little insert dissipation at high-speed operation, laying a solid foundation for the materialization of high-resolution one-way analog switch A/D converter. 2. A new structure of the high-speed CMOS voltage comparator circuit for the improved nonoffset cancel circuit, which can satisfy the needs of the 8-bit linearity.

模拟结果表明，基于CMOS工艺实现的BiCMOS单向模拟开关的传播延迟小于1ns，开关的输入输出阻抗比高达10〓以上，实现了高速工作下的极小插入损耗，为实现高精度单向隔离模拟开关分步法A/D转换器奠定了基础； 2、基于满足八位线性要求的前提，本文提出了一种改进的无失调取消电路的高速CMOS电压比较器新结构。

During this period, the respective removal of chemical oxygen demand, suspended solid, ammonion NH4(superscript + reached around 86%, 77%, and 91% respectively, while the F/M was around 0.12 kgCOD/kgMLSS-day. The effluent was clear, highly transparent and odorless. The microscopic observation showed that amount of Ciliata, such as Vorticella Convallaria, Vorticella Alba, and Vorticella Microstoma, could be found in the reactor's supernatant.

以显微镜观察微生物相时有固著型纤毛虫类出现，所谓活性污泥指标微生物，如白钟虫、钟形虫、小口钟虫、甚至旋轮虫等原生动物，污泥胶羽能凝聚成团、颗粒大、结构紧密、沉降性佳、处理水质清澈、透视度佳、无臭味。

For quantum mechanics, the wave function has no direct physical meaning, but is a theoretical construction that can be used to derive the probability of later events.

在量子力学中，波函数并无直接的物理内涵，而仅仅作为一种理论上的结构，被用来预示后续事件得以发生的几率。

The morphology, structure and ingredient as well as character of as - prepared samples were investigated by XRD, HRTEM, EDS, TG-DTA, ICP-IRIS and micro-sclerometer techniques.

利用化学镀法和无压烧结法制备Pt/Al2O3复合粉体和相应的块体材料，并对粉体及块体采用XRD、高分辩电子显微分析、能量散射谱、热重－差热分析、电感藕合等离子体发射光谱、微型硬度测试等技术对其形貌、结构、成分、性能进行研究。

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。