双层

This dissertation summarizes all kinds of topological relationships and spatial operations, and uses the conception realms to design the data structure of spatial region objects, and devises the red、blue planar graph algorithm, and makes use of red and blue sweep-line algorithm to implement the spatial topological analysis operations on layers of region objects. At the end, further works and improvements are presented.

本文 对空间拓扑分析操作进行了归纳总结，并且基于 Realms 概念探讨了空间区域对象的数据结构以及红蓝区域平面图算法，文章详细讨论了针对双层红蓝区域对象的各种空间拓扑分析算法的实现，最后是该类问题的进一步改进和构想。

The weathering crust is part of karst planation surface.

再以"岩溶双层夷平面"理论为基础，阐明风化壳是岩溶夷平面的组成部分。

Toxin could caused plasmolysis, the vacuous mitochondrion and plasmalemma breakage etc.

可引起水稻愈伤组织细胞质壁分离、线粒体双层膜与嵴模糊、线粒体空泡化、质膜断裂等受害情况。

Asharp signal is obtained when a potential pulsed is applied, due to the capacitive current generated by the double layer of charged or polar species at the electrode surface.

Asharp信号得到，当潜力搏动了是应用的，由于被充电的或极性种类双层引起的电容潮流在电极浮出水面。

In addition, Polytetrafluoroethylene and Polyacetal , which have got chain structures, are also tested under the same experimental conditions for the comparison and contrast.

除研究了由同一有机物单体聚合而成的均聚膜的性能外，还研究了由两种有机物单体聚合而成的共聚膜和双层膜的性能。

We use Color-coated steel sandwich panel Movable house to produce the Two storey prefab house .

我们采用彩钢活动房来制造双层临建房。

The principium of the model and TS are introduced, a representative result and the analysis are given.

试验结果及其分析表明本文提出的具有随机参数的产业选址问题双层规划模型及其优化算法的有效性。

Moreover, it was found that the WVP of tapioca starch /dHG film pronouncedly decreased by the aid of a surfactant layer lamination.

淀粉/dHG单层膜及加上界面活性剂层而成的双层膜较乳化膜具更高的水气阻隔性及抗张强度及破裂点伸长率。

Load Proportionality Factor curve can entirely describe the buckling process of the PIP systems.

以分析不稳定平衡问题的改进Riks方法被证明为高温海底管道屈曲分析的有效算法，得到的弧长－载荷比例因子曲线能够充分地描述双层管道的屈曲失稳过程。

A virus strain was isolated from the arthrosis of broiler chickens.The virus was shown to have spherical particles with isometric symmetry,no envelope,double deck capsids,with outer capsid of 75nm,inner one of 50nm in diameter by electron microscopy.The virus was not sensitive to aether,acid and heat.The virus could multiply on the chick embryo fibroblastcell,and could cause syncytial pathologic change with the appearance of cytoplasm inclusion bodies.The challenged chickens of one-day old by nasal,oral,intramuscular and pulvillus injection displayed obvious clinical symptom of severe arthritis and accompanied with pathological changes of malabsorption and necrosis.Meanwhile,four avian reovirus isolates CL,S1133,YH and YB were examined in the cross-neutralization test.

从临床患病鸡关节病料中分离到一株病毒，在电镜下观察到病毒粒子无囊膜，有双层衣壳，外衣壳直径约75nm，内核约50nm；分离病毒株对酸、热有较强的抵抗力，对乙醚不敏感；病毒感染鸡胚成纤维细胞上能产生以融合细胞为特征的CPE；爪垫接种1日龄雏鸡表现出明显的病毒性关节炎临床症状，并伴有吸收障碍型和坏死型的病理变化；血清中和交叉试验表明，该病毒分离株与国内的2株番鸭源呼肠孤病毒分离株和国外S1133呈不同程度的交叉反应。

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。