基础油

This makes more and more people pay more attention to studies and applications of numerical simulation in thermal recovery. In this research, we have developed a reliable mathematical model for thermal recovery, which takes a full consideration of the effect of viscos, gravitical and capillary forces on the three-phase flow of gas, water and oil, the effect of the temperature on the medium characteristics of liquid and solid, the phase equilibrium of gas-liquid in each component, heat transportation including connection, conduction and radiation as well as heat losses in both the overburn and underlying strata. In the space discreation of the mathematical model, we have proposed a new method based on the improvement of the conventional nine-points difference approximation, which has a higher difference accurancy.

本项研究以热力采油的主要机理为基础，充分考虑在粘性力、重力和毛管力作用下油水气三相流动，考虑温度对各种流体和固体介质物性的影响，考虑每一组分中汽液两相的相平衡，考虑热在地层中的传导、对流和辐射以及上下盖层的热损失，利用热力学第一定律、质量守恒定律和流体迁移定律，建立了正确可靠的注蒸汽数学模型；在对数学模型进行空间离散时，利用控制有限体积积分法，对以往的九点差分近似作了合理的改进，使其具有较高的差分近似精度：结果表明，该公式的近似精度要比以往文献中所给的九点差分近似精度高，可以认为，在油藏数值模拟中，如果遇到非均质情况，使用这种九点差分近似更合理。

In this paper, the change rule of inner oil temperature in wet multiple disk brake is studied when braked. Mathematics model on unsteady state heat transfer is established in wet multiple disk brake On the basis of theory and experiment research, which will provided theory ground for design and choice type on wet multiple disk brake.

本论文在理论与试验研究的基础上，研究与分析了湿式多盘制动器在制动时内部油温的变化规律，建立了湿式多盘制动器整体非稳态散热的数学模型，为湿式多盘制动器的设计与选型提供了理论依据。

The main research work of this paper are focused on following areas:(1) Based on review of the theory and methods on measurements of particle fields, a new idea for obtaining particle size and velocity distribution within a spray through imaging the particle field with a laser light sheet was put forward;(2) A DPIV (Digital Particle Image Velocimetry) system, is fit for velocity measurements of low speed flows, was developed and expended to particle size distribution measurement;(3) An arithmetic for particle velocity field reconstruction was developed, and the velocity distribution of water mist was also obtained;(4) A software system for particle analysis, which based on image geometry emend, de-noise and image partition was developed, the parameters such as particle size distribution, mean diameter, number of particles, minimum and maximum diameter can be got with this system;(5) A water mist system was developed and its characteristics, such as droplet velocity, size distribution, number of droplets and spray cone angle under different conditions were obtained from experiments with PIVS;(6) The measurement results of water mist characteristics with PIVS were compared and analyzed with the simply simulated results, and in addition, in order to verify the accuracy of PIVS, some experiments were conducted with the standard particles, such as glass-ball with known mean diameter of 50μm and 115μm, metallic coated tracing particle with mean diameter of 12μm;(7) Some experimental studies on interaction of water mist with liquid pool fires were conducted.

本论文的主要工作包括以下几个方面：（1）在对粒子场测量的相关理论和具体方法进行综述分析的基础上，提出了通过采用激光片光对粒子场进行成像以获取其粒径和速度等参数分布的新思路；（2）研制了适宜于低速流动速度场测量的DPIV(Digital Particle Image Velocimetry)系统，并使其实现了对粒子场粒径分布的测量功能；（3）研制了基于粒子运动轨迹的速度场重建算法，获取了细水雾雾场的速度分布；（4）研制了基于几何校正、去噪、图象分割等图象处理方法的"粒度分析软件系统"，该系统既可分析给出粒子场的粒径分布直方图和平均粒径，还可给出粒子的数目以及最大、最小粒径等信息；（5）建立了一细水雾发生系统，并应用上述方法对不同压力条件下细水雾系统的雾场特性（如速度分布、雾滴粒径分布、雾滴的数目、喷雾张角以及雾化长度等）进行了实验测量研究；（6）对细水雾特性参数的PIVS测量结果与计算机简单模拟计算结果进行了定性比较分析，并利用平均粒径为50μm和115μm的玻璃球以及12μm的标准示踪粒子对PIVS系统的粒径和速度测量结果进行了实验验证，同时对其局限性进行了分析讨论；（7）对不同工况条件下细水雾与油池火相互作用的过程进行了模拟实验研究。

However, other research suggests that eucalyptus oil may be the best plant-based repellent.

但是，其他研究发现，案树油可能是最好的以植物为基础的驱虫剂。

ASP-Foam flooding is a new EOR technology which is developed based on ASP flooding and foam flooding. Foam is formed in the process where ASP is injected with gas alternatively or simultaneously. Due to the extra low tension and high viscosity and the effects of gas blocking you can expected the results of high recovery and high sweep efficiency.

泡沫复合驱是在三元复合驱和泡沫驱基础上发展起来的一种新的三次采油技术，该体系是在三元复合体系和天然气的交替注入或同时注入过程中形成的，由于该体系具有超低的界面张力、较高的粘度及泡沫的气阻作用，预计泡沫复合驱既能显著提高驱油效率和波及体积。

Machinery and hydraulic pressure are the foundation and prerequisite of the system. Through the design of the mechanical part can substitute the worker to finish the work of leading and orientating artificially, through fluid drive to transmit power and realize the movements of the executive body.

机械和液压部分是系统实现的基础和前提，通过机械部分的设计替代人工完成导向以及定位的工作，利用液压装置来传递动力并通过油缸的升降实现执行机构的动作。

General pressed sore patient and long range 1ie in bed patient random mark be experimental group and contrast Set 60 in total example,experimental group basis treatinginroutineupperfacetOfacelongrangeUeinbedpatientandolle, two phase pressed sore patient adopt Chinese gromwell Oil scribble pressed locmion and affected part.Use TDP to roast 1ight irradiating 20 minutes and,contrast a group adopt each 2 to turn over hour once, keeping measuresuch as patient skin and clean bed sheet drying.

将压疮病人及长期卧床的病人随机分为实验组和对照组各30例，实验组在常规治疗的基础上，对长期卧床的病人及Ⅰ、Ⅱ期压疮的病人采用复方紫草油涂搽受压部位和患处，并用TDP烤灯照射20分钟，对照组只采用每2小时翻身一次，保持病人皮肤和床单的清洁干燥等措施。

This multi-pattern steering system has independent suspensions and each group of wheels can circumrotate separately. The rotation of each group of wheels is implemented with valve controlled hydraulic cylinder which revolves the gyrate bearing through mechanical linkage.

采用独立悬挂、各轮组独立转向的多模式转向系统；由阀控液压油缸通过连杆机构带动回转支承旋转来实现各轮组的转动；在位置P ID算法的基础中加入数字补偿的控制方案。

The flow resistance and heat transfer characters of POS in pipe is studied by experimental and mathematical method.

研究的结论为油焦浆用作锅炉燃料提供了具有指导意义的理论基础。

The priorities are the diversification characteristics of each targetin the subsequent water flooding. According to diversification characteristics of these targets,the paper studies how the heterogeneousness, water flooded condition, interconnectingcondition of zone;key measures injector parameters affect these targets from polymer floodingmechanism. Based on influence equations, production target prediction models are built usingHall curve theory, relative permeability curve, relations of water saturation and relativepermeability and material balance equation. Parameters of models are calculated by the way ofcomputer program and so that a simple, fast way have been gained to predict production targetof polymer subsequent flooding.

针对这些指标的变化特点，从聚合物驱油机理上分析其油层非均质性、油层水淹状况、油层连通状况、主要措施及注入参数等因素对这些指标的影响，在分流方程的基础上，利用霍尔曲线原理、相对渗透率曲线、含水饱和度与相对渗透率之间的关系以及物质平衡方程建立起开发指标预测模型，结合数学方法对模型参数进行计算，形成简便、快速、实用的聚合物驱后续水驱阶段开发指标预测方法。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。