特性

To resolve above problems, the paper analyzes the flow rate characteristic of pneumatic component and design a system for testing flow rate characteristic. Finally I will experiment to make clear the flow rate characteristic. The paper is disparted to five chapters.

本论文正是针对以上问题，对气动元件流量特性进行深入的分析，并在此基础上设计出流量特性测试系统，最后根据某些疑问做试验，加深对流量特性的理解。

Firstly, a basic model is put forward in the paper, then according to some special characteristics of the real logistics network such as growth, preferential attachment, edge-weighted, the basic model is emended, improved and optimized.

在建模的过程中，首先建立了一个原始模型，考虑到实际物流网络具有的成长特性、优先连接特性、赋权路径特性等方面的实际情况，在原始模型的基础上对该模型进行了修正和优化。

The process was introduced. The Static and Dynamic performances were simulated. Through this process the Static and Dynamic curves were graphed. At the same time, the differences between the model and the CNG-engine Higher Depressed Valve were analyzed in the Static and Dynamic performances.

对该模型的建立过程进行了详细的阐述，并且进行了静态和动态仿真，通过仿真得到了静态特性曲线和动态特性曲线，同时通过对这些曲线的分析，阐释了模型与实际天然气高压减压阀在静态和动态特性上的差异。

The fifth chapter gets the disturbing characteristic of the flaw by analysis the material characteristic. It analysis and calculates disturbing characteristic of the length of the limiting flaw with the special mathematics mode, and it notarizes the flaw life with the COD way on the basis of analysision of magnitude of the stress.

本文第五章通过对材料属性的分析，得出裂尖启裂因子的分布特性，通过特定的随机数学模型，分析计算并导出了临界裂纹长度的分布特性，并在对应力幅的分析基础上，运用COD方法来确定裂纹扩展寿命，最终运用Monte-Carlo模型计算得到了裂纹扩展寿命的分布特性。

The key of the simulation is to select a suited set of models and parameters which represent the motion and the echo of moving targets, Because the perform of microwave radars operating over the moving targets is very complicated.In this paper, we discuss how to simulate the motion of targets with a method of parameters simulation. And then we get a track clearly through controlling the flight parameters and the time increasing. The way reduces the error.This paper also particularizes the prime parameter of the echo--Radar Cross Section which is influenced by many factors.

对于目标的实时运动特性，本文采用了航迹的参数模拟法，通过控制目标的飞行性能参数与时间增量的大小来模拟目标的真实运动，避免了多种因素所引起的飞行误差，效果良好；此外，本文详细分析了表征运动目标回波特性的雷达截面积与雷达波长、目标姿态、极化方式及视角的关系，在此基础上，考虑了RCS的两种起伏特性以及天线对其的调制作用，得出了快、慢起伏目标回波的仿真数据，并对二者进行了比较。

The KTP crystal is periodically poled by electric field utilizing metal and liquid electrodes.

分析了KTP晶体的介电特性、光学特性和光损伤特性等主要性质。

By means of experimental investigation, this paper analyses the applicabilities and limitations of pole-zero model and wave approach in predicating the phase behavior of vibrational structures.

通过对机械结构相位特性的试验研究，分析了极点零点模型和波动理论应用於相位特性估计的适用性和局限性，讨论了相位特性与有关因素之间的关系。

Wave statistic and spectrum, characteristics of flow field under shoaling irregular waves are investigated.

对斜坡床面上不规则波浪要素及其作用下底部的流动特性进行实验观测，对波高进行统计分析和谱分析，在实验数据范围内得出斜坡上不规则波浪要素与谱的关系表达式，同时对浅化作用下不规则波浪的流动特性进行统计分析和谱分析，得到了浅化作用对不规则波浪的波高及底部流动特性影响的规律。

In the high efficiency oil removal technology aspect, the theory study and application experiment of air sparged liquid-liquid hydrocyclone was carried out, enlightened by the air sparged solid-liquid hydrocyclone. Firstly, the strength and movement of dispersed phase was analyzed in theory, it was proved that the air bubble-oil drop polymer trend to move to the axes of hydrocyclone. Secondly, using CFD method, the characteristics of oil-air-water flow field were studied, including velocity distribution, pressure distribution, turbulent motion energy and its dissipation distribution. The characteristics and separation effect under different air injection methods were simulated. Thirdly, the separation ex-periment of air sparged liquid-liquid hydrocyclone was carried out at Lab. The major structure parameters of the hydrocyclone were optimized, the reasonable air injection method and performance parameters were determined through 4 groups of air injection experiments.

首先，对气携旋流场中分散相粒子的受力及运动进行了理论分析，证明了气泡与油滴形成的聚合体，更易于向轴心运动；其次，应用CFD方法，研究了油-气-水三相流场的速度分布、压力分布、湍动能及其耗散率分布特性，对不同注气方式的流场特性及分离效果进行了数值模拟；第三，开展了气携液-液旋流分离特性室内研究，优化了旋流器的主要结构参数，对四种注气方式的分离效率进行了对比，确定了合理的注气方式和操作参数；最后，在油田现场开展了处理聚驱采出污水工艺试验，确定了工艺运行参数，评价了处理效果。

The results showed: decapitation and suckering agents treatment can significantly increase leaves and leaf area index at topping later stage,enhanced chlorophyll content,extended the function of leaves,improved photosynthetic potential at the topping mid and later stage,and promoted a...

结果表明，打顶+抑芽敏处理可明显增加打顶后期单株叶数和叶面积指数，提高叶绿素含量，延长叶片功能期，增强打顶中后期光合势，促进后期净同化率和群体生长率增长，使打顶中后期光合特性维持在较高水平；打顶+人工抹芽和打顶处理也在一定程度上改善了生育后期光合特性，而抑芽敏处理对光合特性影响不明显。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。