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Based on the characteristics of casing annulus gas-venting wells, the particularity of multi-phase flow in the condition that the casing-head gas flows through a nearly stagnant liquid was investigated. Based on the theory of Taylor bubble, a model to calculate void fraction and pressure gradient in various viscosity liquids was developed. This model is applicable to bubbly flow and slug flow.

以泰勒气泡在黏滞流体中的上升流速作为主要依据，建立了不同油黏度下套管环空放气流动的截面含气率和压降计算模型，并提出了不同黏度、不同气油比的套管定压放气井环空流动计算及套管压力分布的多相流模型，该模型主要适用于泡流和段塞流。

In applying high concentration burning technique to improving burning efficiency for pulverized coal burner, for studying the effect of solid flows of different concentration on burning, Euler mathematical model is set up using gas-solid two phase flow theory. The paper describes the low concentration pulverized coal in horizontal primary air pipe. The relationship between the velocity and concentration of gas phase and that of solid phase, and the effect of gas flow velocity on gas-solid two-phase flows, is arrived through calculating the flow field. Reasonable gas flow velocity is proposed.

在应用高浓度燃烧技术提高煤粉炉的燃烧效率时，为了研究不同浓度固相流动对燃烧的影响，应用气固两相流理论建立Euler数学模型对一次风水平管道中低浓度的煤粉颗粒进行了描述，通过求解流场，得到了管内气相和固相的速度和浓度的分布关系，及其气体流速对气固两相流动的影响，并提出合理气流速度。

We use GRIN lens as collimating or focusing lens for transmission gas cell ,and a method that using cascaded GRINLens couple to increase the optical path length is presented. Using this method ,the detection sensitivity of the gas cell has been greatly increased.

利用自聚焦透镜作为光纤准直透镜和聚焦透镜，应用于透射型气室，并提出了在透射式气室中将多对自聚焦透镜组串联用以增加吸收光程的方法，用该方法可以明显提高气室的检测灵敏度。

The computational results indicate that surface catalytic combustion restrains gas phase combustion. Inlet velocity and tube diameters have important influence on catalytic combustion of hydrogen. For smaller inlet velocities,reaction is dominated by gas phase combustion. As the inlet velocity increases,there exist both surface catalytic combustion and gas phase combustion. For bigger inlet velocities,reaction is dominated by surface catalytic combustion. The temperature of flame core decreases with the decrease of tube diameter.

计算结果表明，表面催化反应对空间气相反应有抑制作用；入口速度和管径对氢气的催化燃烧过程有重要的影响，在入口速度较小时，燃烧主要是空间气相化学反应，随着入口速度的增大，燃烧过程同时存在着表面催化反应和空间气相反应两种控制因素，在入口速度较大时，燃烧主要是表面催化燃烧过程；随着管径的减小，微型管道内反应的最高温度降低。

The displacer cylinder is made of glass test tube and the glass syringe are made as the power piston .The students can observe what happening inside the engine what the engine is operating . In this research we try to investigate the relations between the hot air engine characteristics and the design parameters , and base on the results .We designed and made a hot air engine car with a good performance .

本引擎车使用玻璃试管与玻璃针筒作为移气器汽缸与动力活塞汽缸，让学生能够直接观察引擎作动时移气器与活塞的相对运动，本研究首先针对行程容积比、移气器与汽缸长度比、流道大小、再生器等参数与引擎性能的关连性进行研究，进而设计出热空气引擎车。

Maintaining engine operating at constant load and varying the argon fraction in the intake charge, the influence of argon fraction in the intake charge on the performance of a closed cycle diesel engine was studied.

恒定柴油机负载，改变混合进气中氩气的含量，分析了进气混合气中氢气含量对闭式循环柴油机性能的影响。

The design of the dry-dock falling gate"s structure is researched, and integrates the disquisitions and analysis on the dynamic characteristics about dock gate, in order to make the cabin design more visualizing.(2) The emphasis of this paper is the influence of the water hole and gas hole in the tidal cabin and the influence of the drain of the air-operated cabin.(3) In this paper, the building method of the dry-dock falling gate"s parametric model is studied and the dynamic analysis is accomplished in ADAMS, furthermore, the rising-and-falling angle curve is drawn while the dry dock gate is rising and falling.(4) The paper is based on the apprehension of the past theories and researches about air-operated dry-dock falling gate, and is explicated by hydraulic rationales and rising-and-falling mechanical principles. This software is developed by inner programming language in ADAMS and VC. This design could shorten design cycle.

1研究了气控式干船坞卧倒门的结构设计，整合对卧倒门在海水中运动中的动力特性研究，使卧倒门的设计，特别使其舱格设计更具可视化；(2)重点讨论潮汐舱水孔气孔对卧倒门水上运动的影响，空气操作舱充排水对卧倒门运动的影响；(3)研究了气控式干船坞卧倒门仿真模型的参数化方法和过程，并在ADAMS中完成了系统的动力学分析，绘制出了卧倒门在起卧过程中的运动特性曲线；(4)通过对已有的气控式干船坞卧倒门的实验成果和成形理论的解读，在理解其起浮和卧倒机理基础上，应用VC和ADAMS二次开发语言进行设计软件开发，定制了友好的用户化中文人机交互界面，使设计人员可以方便快捷地对卧倒门门进行设计开发，缩短了设计周期。

Gas dispersion in liquid phase is generally non-uniform in gas-liquid surface aerators with large height-to-diameter ratio.

在高径比较大的表面曝气反应器中，由表面吸入的气体较难分散到反应器的底部，为增强反应器的气液传质性能，需要将反应器底部供气和表面曝气的配置优化。

Sewage Department, specializing in power plants, steel mills, chemical plants and other large-scale sewage treatment works to provide design and equipment, the company patented product "industrial life of recovery and recycling use of waste water treatment equipment","mud-money machine","water or aeration device,""rotary aeration sewage treatment plant","anaerobic / aerobic integrated ultra-deep-seated biological nitrogen removal from wastewater aeration method and device","Industrial Water Treatment Algicide use sterilization and synthesis methods,"" ultrasound device removal "and so on.

英语翻译恳求各位高手翻译成中文，污水处理部，专业从事电厂、钢厂、化工厂等大型污水处理工程设计和配套设备提供，公司专利产品&将工业生活废水回收循环利用的水处理设备&、&清泥机&、&跌水曝气装置&、&转盘式污水处理曝气装置&、&厌氧／好氧一体化超深层曝气废水生物脱氮方法及其装置&、&工业水处理用杀菌灭藻剂及其合成方法&、&超声波除藻装置&等。

The therapies for pulmonary disease include promoting and descending lung-qi, removing heat from the lung and relieving asthma, warming the lung to reduce watery phlegm, sending down lung-qi and resolving the phlegm, moistening the lung and resolving the phlegm, clearing away the dissolving phlegm, replenishing and restoring the lung-qi, astringing the lung-qi and nourishing the lung-yin.

肺病治法包括宣降肺气，泻肺平喘，温肺化饮，肃肺化痰，润肺化痰，清肺泻热，清肺化痰，补益肺气，收敛肺气，滋补肺阴；配伍用药包括配伍健脾药，配伍疏肝药，配伍补肾药，配伍开窍药，配伍补血药，配伍活血药，配伍解表药，配伍利湿药，配伍软坚药；辨治用方例举过敏性哮喘、肺气肿，喉源性咳嗽、慢性支气管炎，肺气肿、肺源性心脏病，肺间质纤维化，过敏性哮喘，矽肺、气胸。

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。