可建立的

In this paper,the branch pipe network as a virtual ring pipe network is proposed,and the equation for it has been set up.It is proved that Kirchhoff law of ring pipe network is a kind of special form of equation,which is the virtual ring pipe network.

本文中提出将树枝管网视为虚环，建立了虚环方程，证明了环形管网的基尔霍夫定律是虚环方程的一种特殊形式，环形管网方程和虚环方程互相兼容，可联立求解。

Firstly, a hybrid system about the start-up process of a leatheroid's DMF recovering plant has been studied, the hierarchical control model of this system was built using timed Petri nets and hybrid Petri nets theory. The monitoring method of start-up process was discussed by studying the coordination layer of this model, and the reachability method was adapted to analyze this model.

论文首先对混杂系统——人造革DMF回收开车过程进行了研究，结合赋时Petri网和混合Petri网建立了其递阶控制模型；通过对其协调层的深入讨论，研究了开车过程的监控问题，采用可达性等方法对模型进行了分析。

"Avoiding vacuum packaging would lead to other problems with bacterial growth, so I'm not advocating that," food microbiologist Tine Licht told LiveScience.

"真空包装可避免其他细菌繁殖，所以我并不鼓励取消它"，Licht说，"但是我们的工作有利于建立食源性疾病的风险预报模型"。

National Institute of Metrology,Beijing 100013,China）Abstract:The linear or non-linear functional formula was used to correct data reasonably to increase accuracy and precision.

摘 要：通过建立漂移与时间的线性或非线性函数关系，可对测量数据进行合理校正，提高分析测试的准确度和精密度。

For better radar emitter recognition,a study is carried out in this paper on the attribute reduction algorithm,which is based on discernibility matrix and logical operation in Rough Sets.

为准确解决辐射源识别问题，研究了粗糙集中基于可辨识矩阵和逻辑运算的属性约简算法，对决策表进行约简，减少了属性个数；并建立了一种基于粗糙集数据处理的雷达辐射源识别模型。

But from 1940s, Levin and Lown advised that AMI patients could do the early rehabilitation activities, and they thought the early activity could speed the blood circulation, avoid blood ropiness, improve the coronary blood flow, facilitate the compensatory circulation, and reduce the infarction lesion ductility.

但从20世纪40年代，Levin和Lown主张AMI患者进行早期康复活动，认为早期活动可使血流加速，避免血液粘稠、改善冠状动脉血流，促进侧支循环的建立，降低梗死延展的发生率。

After learning of Hertz's work in 1894, Marconi quickly realized the possible application.

马可尼在1894年了解了赫兹的工作后，他很快就意识到了可能的应用。1895年末，他建立了发射器和接收器，并且让成功地在2.5公里内传送了无线信号。1901年，他改进了这项技术，实现了横跨大西洋传输信号。

At first, a graph about the environment can be built based on the sample data generated from a Markov decision process.

首先，基于马尔可夫决策过程抽样得到的样本数据建立环境的图论描述。

RESULTS: The three kinds of osteotomy in which different levels of osteotomied maxillary complex area were advanced.

通过软硬组织三维有限元模型的建立，可成功模拟面中部牵张成骨术后软组织的变化。

The above results suggest that the model of RMMCs has been successfully established and it will provide the ideal cell model for the research on the mechanism of meninges fibrosis.

本实验成功建立了RMMC培养模型，可为脑膜纤维化的形成机制研究提供理想的细胞模型。

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。