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Assuming a condition cont-rol reserve calculation,combimatively solve the material balance equation of gas recovery and binomial gas recovery equation for gas well,calculate the production curve of gas well and match it with the actual production curve,finally determine the reserve and productivity parameter,this method doesn't need much pressure build-up data,and can calculate the c...

该方法的推导思路是：假设在某一控制储量条件下，联立求解气藏物质平衡方程式和气井二项式采气方程，计算气井采气曲线并将其与实际的采气曲线相匹配，最后确定储量、产能参数。该方法不需要较长的多次关井复压资料，在气藏受水驱影响较小时，还可计算一口探井或气藏试采早期所反映出的气井控制储量，在气藏生产中得到应用，计算结果较为可靠

On the basis of slip-diffusion model of multiphase flow, a three-dimensional mathematical model of gas-particle flow in blowpipe has been developed and debugged to calculate the gas-solid two phases flow, including gas velocity and particle velocity inside the blowpipe.

运用多相流的拟流体模型建立了高炉局部富氧喷煤直吹管内气粉两相流动的数学模型，对气粉两相流场进行了数值研究，探讨了气相和煤粉的速度分布规律及其影响因素，其中包括氧-煤喷枪的结构、漩流数和富氧率等。

He is short of breath, even when he is not exercising, he is breathless.

他喘不上气来；即使不运动，也是上气不接下气。

The different head loss pattern was considered as the reason of that up-flow BAF had a longer operation time than down-flow BAF. Carbonate gravel (3～5mm) filter had a larger porosity and consequently had a longer operation time than that of ceramist filter.

试验中发现，上向流曝气生物滤池运行过程中水头损失呈近线性变化，而下向流曝气生物滤池的水头损失则在接近过滤终点时呈明显的指数式突跃增加，这是导致下向流曝气生物滤池运行周期比较短、反冲洗比较容易的主要原因。

The results show that there are little difference of CO sensitivity between precipitation transformation method and sol-gel method, the sensitivity of copper oxide loading on zirconium oxide or cerium oxide is better than that of loading on alumina or silicon dioxide, the optimal calcinations temperature is 500 Celsius degree and the optimal copper content loading on cerium oxide is twelve percent.

实验结果表明，材料的制备方法对气敏性质的影响不大；锆铈基氧化物的气敏性质较高，而Al2O3，SiO2作载体时效果要差一些；焙烧温度在500℃时对CO具有最好的灵敏度；当负载在氧化铈载体上的氧化铜含量为12%时，对CO的气敏性质最高。

We want to interpret the sensing mechanism of copper oxide by the point of view of catalytic chemisorption theory; the cause of sensitivity of copper oxide was the CO chemisorption on the oxygen active regions.

并从催化理论上对氧化铜的气敏机理进行解释，认为CO在氧化铜表面的化学吸附是氧化铜气敏材料的气敏性质产生的原因。

Gas Distribution series of devices - from the control point of view, a semi-automatic and fully automatic with two gas from the gas source is composed of two groups of (liquefied petroleum gas, compressed air) and three groups of (nitrogen , Hydrogen, propane or butane) of the points is to provide natural gas and gas cities of the ideal alternative source of gas equipment, especially for gas production-line equipment manufacturers and test firing of Quality Supervision, Inspection departments for laboratory and performance of combustion Test.

从配气气源组成有二组份及三组份（氮气、氢气、丙烷或丁烷）之分；是提供天然气和城市人工煤气替代气源的理想设备，特别适用于燃气器具生产企业在线生产试烧和质量监督检验部门用于实验室及燃烧性能的检验。

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。

The similarity conditions of geometry, flow movement and dynamics of air bubbles are analyzed.

从气体运动状态方程出发，研究了竖井有压流动模型中气水两相流的运动规律，分析了气泡几何相似、运动相似以及动力相似的条件，指出掺气浓度相似律是研究气水两相流相似问题的又一必要条件，即原、模型的掺气浓度必须相等，前提为大气压强或密度相似。

This essay mainly introduces the principle of the membrane contactor, the structure of equipment and the way to install degas sing system efficiently.

本论文主要介绍了膜法脱气的原理、脱气设备的结构布置以及在工程实际中如何组装脱气膜系统装置，并给出了非常详细的工艺流程图和工程装置图。

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。