气体的

In order to improve the performance of aerostatic bearing and enhance the reliability of system, the chief works of this paper represents as follows: First, on the foundation of development and present research situation of internal and external aerostatic bearings, this paper summarizes the principle of aerostatic bearing, according to several assumptions of work conditions, two-dimensional Reynolds equation of isotherm compressible fluid is deduced.

为改善气体轴承的性能，提高气浮轴承转子系统的安全性、可靠性，本文进行了如下研究工作：首先，本文在综述了国内、外气体静压轴承的发展历史和研究现状的基础上对气体静压轴承基本原理进行了概述，根据小孔节流静压气浮轴承的工作状况，作了若干假设，在此基础上导出了描述气膜压力场的二维可压缩Reynolds方程。

Compared the VOCs in lung cancer patients and normal people and metabolic product of lung cancer cells to analyze the correlation between lung cancer and its marker VOCs.Results 7 lung cancer patients were detected three marker VOCs in their breath: Benzene,Propyl benzene and Decane.

在肺癌患者的呼吸气体中所含的特征性有机成分的检测方面［1～3］，已经有部分科研人员做了尝试，也有培养肺癌组织细胞并探测其代谢气体成分的研究［4］，期望能建立通过检测患者的呼吸气体即能够初筛肺癌患者的简便方法。

By means of analyzing the solubility and solubility rate of gas in water, and making application of double-film theory and Fick's law, the solubility rate of nitrogen in water is theoretically calculated in ga.

通过对气体在水中溶解度和溶解速率的分析，应用气体溶解速率的"双膜理论"和气体扩散的"菲克定律"，从理论上计算出气密性试验中的氮气在水中的溶解速率。

Three aspects have been studied theoretically in this paper which were based on an analysis of a compliant multleaf journal self-acting air bearing, which are as follows:(1) A set of theoretical analysis method which include the development of .physical and mathematical model, the solution of governing equations and theprediction of static and dynamic performance of the foil gas bearing is proposed.

本文在分析悬臂型弹性箔片径向动压气体轴承工作原理的基础上，做了以下几个方面的工作：(1)建立了悬臂型弹性箔片径向动压气体轴承的物理和数学模型，确立并求解了控制方程，得到了静、动态性能的稳定性分析方法，为数值分析悬臂型弹性箔片径向动压气体轴承奠定了基础。

This paper is mainly about the research of the structure and principle of the aerostatic bearings, and gives a method of engineering calculation; two calculating programs of bearing load, stiffness and gas flow are written in C language, then detailed analysis is made according to the results.

本论文讲述了气体轴承的工作原理和结构，给出了气体轴承工程计算的方法；用C语言编程进行工程计算并分析了各几何参数和气体参数对性能参数的影响，根据分析和计算结果确定了气浮轴承的参数；利用三维造型软件Pro/ENGINEER进行了气浮台整体的结构设计。

Noncondensible gas(7%～33%,consisting of CO,CO2,H2 and C1-C2 hydrocarbons),liquid(water and oil phases,26%～45%)and solid residues(31%～51%)were collected after microwave heating of waste PCB.

结果显示：微波热解得到的气体、液体、固体的产率分别为7%～33%、26%～45%、31%～51%，其中气体主要由CO、CO2、H2及有机烃类组成，可燃性气体占70%左右，可作为燃料气加以利用；液体分为水相及油相，经常压蒸馏后得到的120～250℃馏分主要为单酚化合物，苯酚高达50%左右，甲基苯酚和邻甲基苯酚为25%以上，是良好的化工原料；固体中除炭外，还含有许多金属如铅、锡和铜等，可以回收利用。

The main contents and some most important results are as following. On the basis of experience from extensive literature survey and visiting some relevant known research institute, the volumetric method is chosen for measuring the adsorption isothermal in reservoir cores in the end, after a basic evaluation experiment using a porosimeter.

本文的主要研究内容和所获得的重要结论如下·在广泛文献调研和实地走访国内知名科研院所的基础上，结合储层介质气体吸附特点，初步选定恒体积法作为储层介质气体吸附的测试方法，并利用一台孔隙度测试仪对该方法进行了可行性研究，研究的结果进一步确定了这种方法对储层介质气体吸附测试的可行性。

This paper discussed the basic character of optical fiber gas sensor, and introduced several methods of absorptive spectrum optical fiber gas sensor., and described the principles of the methods in detail, and analyzed the factors of affecting precise of absorptive spectrum optical fiber gas sensor.

简述了光纤气体传感器的基本特性，介绍了几种光谱吸收光纤气体传感的方法，详细阐述了各种传感方法的原理，分析了影响光谱吸收光纤气体传感精度的因素。

In view of that spectrum quantitative analysis of component concentration,and qualitative analysis of component recognition can not be carried out using the same model simultaneously during infrared spectrum analysis of the mixed gas,a method of mixed gas component infrared spectrum recognition based on SVM regression model is proposed.

针对混合气体红外光谱分析中无法采用同一模型同时进行混合气体组分浓度的定量分析和组分种类的定性分析的问题，本文提出了基于SVM回归模型的混合气体组分种类光谱识别方法。

A ground system was designed to separate drilling cuttings from gas in gas drilling. The system is composed of two-stage series-wound cyclone separators and two filters. The high-cost drilling gas purified by this system can be recovered and recycled.

根据气体钻井的特点，设计了由两级串联的旋风分离器与两台过滤器组成的气体钻井地面分离系统，对成本较高的气体钻井介质进行回收和循环利用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。