系统发生的

Choosing time delay as the control parameter, the stability of trivial equilibrium is discussed by analyzing distribution of the roots of the associated characteristic equation. It is found that Hopf bifurcation occurs from trivial equilibrium when the delay passes through critical values, then the critical values and their relations with system control parameters are obtained.

以时滞量为参数，通过分析对应线性系统特征方程的根的分布，讨论了平凡解的稳定性，得到了平凡解发生Hopf分岔而失稳的临界时滞量以及临界时滞量与系统控制参数的关系。

Results show that existence from strong convergence of water vapor and the conditional convective instability in the middle and low troposphere probably provided the suitable environment for heavy rainfall.

分析表明，对流层中低层水汽的大量集中以及对流不稳定条件的存在可能对此类系统发展提供了有利环境，对其启动的机制作了初步的讨论，认为地形的动力强迫和地面冷锋以及低空急流扰动可能对此类系统的发生发展起了触发作用。

In the process of issuing a card, UCard receives commands from the terminal and finishes some inner operations. At the same time, the states of the master processor system and the coprocessor system change continuously.

在发卡过程中，优卡接收来自终端的命令并完成相关的内部操作，相应地，主处理器系统和协处理器系统的状态发生相应的改变，据此建立了二者的状态机模型，给出了状态转换图。

In the process of issuing a card, UCard receives commands from the terminal and finishes some inner operations. At the same time, the states of the master processor system and the coprocessor system change continuously. So we get FSM models for the two subsystems and the state transition diagrams are made. The process of using goes through three steps.

在发卡过程中，优卡接收来自终端的命令并完成相关的内部操作，相应地，主处理器系统和协处理器系统的状态发生相应的改变，据此建立了二者的状态机模型，给出了状态转换图。

In a very long incubation period, although no infection symptoms, appearance as an ordinary person, but the body's immune system by HIV continues to damage to the immune system can no longer maintain the minimum defense capability, a variety of normal People will not cause the disease so that patients will be pathogenic microorganisms in the conditions of the infection, caused brain, lungs, gastrointestinal tract and other parts of the disease and symptoms.

在很长的潜伏期中，感染者虽然没有自觉症状，外表一如常人，但全身免疫系统仍在继续受到艾滋病病毒的破坏，到免疫系统功能再也不能维持最低的防御能力时，多种对正常人不会引起疾病的病原微生物便会使患者发生条件性感染，引起脑、肺、胃肠道和其他部位的病变及症状。

The problem considered in this paper contains absorbing-emitting medium, absorption and emission of radiation not only exist on boundary of the system, but exist in the whole space fulled of medium, variation of temperature, pressure, density, compusure and property with coordinates must be considered in computation, so computation in this paper is based on three dimensional flow field.

本文所计算的问题包含吸收-发射性介质，能量的吸收和发射不仅发生在系统的边界上，而且还发生在充满介质的全部空间，在计算中要考虑介质中各点的温度、压力、浓度、成份以及物性在空间上的变化，因此本文的计算是根据三维流场计算的数据进行的。

During the test, when the trial gunner was about to fire a shell, the observer onshore discovered through the "Maritime Testing and Positioning System" that there was some problem with the fire control system of the armored vehicle, he immediately put a stop to firing to prevent the occurrence of an accident.

就在试炮员准备发射炮弹的时候，岸上观察员从&海上测试定位系统&上发现装甲车的火控系统有问题，及时制止发射，避免了一场事故的发生。

The model had the capability of self-learning, self-adjustment and continuous improvement, when the domain knowledge changed, maintainers could inject artificial immune vaccination to realize system's self-evolution which could ensure the system's corresponding high credibility and provide support of methodology for the development of trusted software.

该模型具有自我学习、自我调整和持续改进的能力，当领域知识发生变化后，维护人员可通过人工免疫疫苗注入实现系统的自主演化，从而确保系统具有相应的高可信属性，为可信软件开发提供方法论支持。

Background: New studies showed that changes in the balance between haemostatic and antithrombotic processes, including a prethrombotic state might contribute to the development of atherosclerotic lesions which occured in hypertensive vascular complications. This may be one of the causes that satisfactory blood pressure reduction with antihypertensive drugs does not lead to an equal reduction in heart attacks and strokes. With the development of traditional presentation of blood coagulation, the role of tissue factor pathway has been emphasized.

中文题名原发性高血压患者组织因子途径变化与血栓前状态关系的临床与实验研究副题名外文题名 Clinical and experimental study of relation between changes of tissue factor pathway and prethrombotic state in hypertensive patients 论文作者张卫茹导师孙明教授学科专业内科学研究领域\研究方向学位级别博士学位授予单位中南大学学位授予日期2002 论文页码总数70页关键词血栓组织因子高血压馆藏号BSLW /2003 /R544 /3 背景：新近的研究表明，凝血与抗凝系统失衡所导致的血栓前状态与高血压并发症的发生关系密切，这可能是高血压病人虽经有效的降压治疗但发生心、脑、肾、血管并发症的危险仍很高的主要原因之一。

DC power transmission simulationmodel is set up in this paper with the Matlab software, and various faults such as single-phasegrounding short circuit, phase to phase short circuit, three-phase circuit grounding shortcircuit and inverter bridge short circuit are simulated in this model.

用MATLAB软件建立了电力系统直流输电仿真模型，模拟了单相接地短路故障、相间短路故障、换流器桥臂以及单桥故障，经过近百次仿真运行，得出了各种故障下的特性曲线，准确描述了直流输电系统在发生大扰动后的暂态过程，并从理论上进行了科学分析，得出了各种故障对换相失败的影响。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。