情况

This text utilizes the stability theory of differential equation, establishes the mathematical model of praying on the relation among the living beings, then according to the characteristic of differential equation group set up, through analyze to its equalization point,discuss the rail line distribution situation and overall stability, studies the dynamic change situation of every species during sufficient long time slot.

摘要本文利用微分方程稳定性理论，建立生物间捕食关系的数学模型，然后根据建立的微分方程组的特性，通过对其平衡点分析，轨线分布情况以及全局稳定性的讨论，研究出各物种在充分长时间段中的动态变化情况。

As long as the root of the characteristic equation is within the unit circle of z-plane and the corresponding PID parameter is got, the closed loop control system is sure to be stable. Although the root of the characteristic equation can vary within the unit circle of z-plane,different value may affect the control property differently.

本文所采用的这种确定PID参数的方法，虽然可以使特征方程的根在z平面的单位圆内任意取值，但各种取值情况对变风量空调系统的控制品质的影响却不同，因此，要对各种特征方程的根的取值情况进行寻优，本文采用遗传算法对特征方程的根进行寻优，从而使控制器的参数得以优化。

Chondrocyte differentiation and gene expression were observed.

观察软骨细胞的分化情况及基因表达情况。

And after that, two groups patients?raw surface would be covered by the Huangyou yarn, changed dressing everyday and taken the oral antibiotic. The agglutination time and the condition of cicatricle accrementition were observed.

两组前3天均每天换药1次，3d后根据情况隔天或3d换药1次，并同时口服抗生素，对照组采用消毒伤科黄油纱敷于伤口，其他治疗同观察组，观察两组创面愈合时间及瘢痕增生情况。

It is recommended that maintenance treatment should be individual in clinical experiences.It is reasonable to choose the different maintenance therapy plan according to ulcer cicatrization quality under endoscope and the helicobacter pylori situation respectively,which not only can control the recurrence of peptic ulcer effectively,but also can reduce the patient′s economic burden,achieves treatment individuation,and instructs the patients with correct consolidated treatment.

临床上推荐维持治疗个体化，根据内镜下消化性溃疡瘢痕情况和幽门螺杆菌感染情况分别选择不同方案的维持治疗是较合理的，既可有效地控制溃疡复发，又可减轻患者的经济负担，真正做到治疗个体化，指导患者溃疡愈合后正确的巩固治疗。

Special solutions for the ring circular domain with crack surfaces acted on uniform compressive force, linear compressive force and linear shearing force are deduced in polar coordinate employed the eigenfunction expansion technique in the Hamiltonian system of elastic mechanics. Combined with the general solution for the above problems, the analytical solutions for crack tip fields with surfaces acted on the above three kinds of loads are obtained. These solutions offer theoretical basis to construct analytical elements for plastic analysis of crack.

从弹性力学哈密顿体系理论出发，利用平面弹性力学极坐标系下的本征向量展开求解，推导了环形圆形域裂纹边作用有均布压力、线性压力和均布剪切力情况下的特解，从而得到了裂纹表面作用有以上三种荷载情况下的裂纹尖端场的解析解，为进一步构造进行弹塑性裂纹分析的奇异解析元奠定了理论基础。

The drain installations of city management is an important key link of civicism job, this text aim at the request of the drainage pumping station of city, design and implement a drainage pumping station remote monitoring system, the system falls into two part, upper monitor and lower monitor, thereinto , the function of upper monitor must have: setup system parameter, data pandect ,trends curve, view the alarm, data search, report form print and remote control, upper monitory user can look over the related information of pumping station, and control the pumping station when the pumping station allowable; the function of lower monitor must have: get real-time data and send the data, get alarm data and send alarm data, alarm tips, switch control mode and control pumps, lower monitor is a simulation application in pumping station, simulate the control and running about pumping station.

城市排水设施的管理是市政工作中的重要环节，本文针对城市排水泵站的需求，设计并实现了一个排水泵站计算机远程监控系统。系统分为上位机和下位机两部分，其中上位机实现的功能为：参数设定、数据总揽、趋势曲线、报警一览、数据查询、报表打印和远程控制，上位机的用户可以查看泵站的相关信息，并且能在下位机允许的情况下进行远程控制；下位机的功能为：实时数据获取和发送、报警获取和发送、报警提示、控制模式切换和控制功能，下位机是一个对泵站模拟的程序，模拟泵站的控制和运行情况。

But if the diagnosis was made during the LC operation, suture closure or clip closure or stapler closure of CEF under laparoscope might be chosen for an experienced surgeon.

LC术中发现应视具体情况选择手术方式，对于有经验的术者在局部条件允许的情况下可采取钛夹夹闭、镜下缝合或切割吻合器封闭瘘口的方法。

Objective To investigate the resistance of erthromycin and clidamycin in Gram-positive coccus and help to reasonably use clindamycin. Methods Use of MIC to detect 578 isolates randomly collected from January to September in our hospital, double antimicrobial agents detect the clidamycin induce test.

目的 探讨阳性球菌中红霉素诱导克林霉素耐药性的发生情况，合理指导临床用药方法 MIC法检测某院579株阳性球菌对克林霉素和红霉素的耐药情况；双纸片法检测可诱导克林霉素耐药。

Segregated schools, sometimes provide the right conditions for sexual deviation, which is highly impossible under a coeducational system.

男女分校有时为畸形的性观念的形成提供了温床。而这种情况几乎难以在男女同校的情况下发生。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。