气

The result indicates that there are obvious differences between CO2 and CH4 gas reservoirs on value of thermal etching carbonate, fluorescence spectrum and CO2 gas conte...

结果表明，花沟地区的CO2气和CH4气具有不同的地球化学指标组合异常特征，在热蚀碳酸盐、荧光光谱及CO2气含量等指标上有明显的差异。

The result indicates that there are obvious differences between CO2 and CH4 gas reservoirs on value of thermal etching carbonate, fluorescence spectrum and CO2 gas content in Huagou area.

结果表明，花沟地区的CO2气和CH4气具有不同的地球化学指标组合异常特征，在热蚀碳酸盐、荧光光谱及CO2气含量等指标上有明显的差异。

As small gas and hydrogen index causes the calculated effective porosity of a gas zone smaller than that of formation,.

由于储层含气含氢指数小，导致气层核磁共振测井计算的有效孔隙度小于地层孔隙度，含气显示越好的储层核磁测井解释的有效孔隙度越小。

The existing gas-producing and drainage technology can take water out of well hole efficiently. However, it demands considerable ground equipments and lots of money to run so that this will seriously affect the profit in gas reservoir exploitation.

现有排水采气技术虽然能够有效地将井筒中的地层水采至地面，但也给地面的气液分离带来了困难，不仅需要建设大量的地面气液分离设备，而且对所分离出的地层水的处理也需要投入大量的资金，影响着气田的高效开发。

By timely and spatially controlling the physical and chemical characteristics of the fuel at both port injection stage and in-cylinder direct injection stage, HCCI/DI stratified compound combustion is developed to combine the advantages of HCCI and conventional DICI on cycle-to-cycle basis and achieve clean and efficient combustion at full load ranges without misfiring and knocking.Firstly, three types of dual fuel including n-heptane/diesel, iso-octane/diesel and ethanol/bio-diesel a...更多re utilized to investigate the combustion and emission characteristics of HCCI/DI stratified compound combustion. The experimental results indicate that n-heptane/diesel HCCI/DI combustion presents a three-stage heat release consisting of HCCI low temperature heat release, high temperature heat release and diesel diffusive combustion.

本文提出的基于燃料设计与管理的HCCI/DI分层复合燃烧是一种将HCCI燃烧和传统缸内直喷压燃融为一体的新型燃烧方式，通过对燃料理化特性的设计和在预喷与直喷阶段从时间尺度和空间尺度上对均质和非均质混合气制备过程的控制和管理，在发动机的一个工作循环中将均质混合气的HCCI燃烧和非均质混合气的DICI扩散燃烧相融合，彻底消除了HCCI燃烧在小负荷失火和大负荷爆震的弊病，实现了发动机全负荷范围内的高效清洁燃烧。

Objective:To observe the effct of helium-oxygen mixture on vital capacity and to evaluate the theory and application of maximal expiration flow volume curve breathing helium-oxygen mixture.

目的 ：观察氦氧混合气对肺活量的影响，并根据实验数据对氦氧混合气最大呼气流速-容积曲线的理论和价值作一评价。

The aerators are widely used in flood discharge tunnel s and spillways to prevent the cavitation damage of the structures,and air is sucked by flow from the bottom in normal aerator.

龙抬头明流泄洪洞采用常规的底部掺气设施，容易在反弧末端下游附近侧墙处形成掺气盲区，从而导致该侧墙的空蚀破坏，反弧末端下游侧墙是龙抬头明流泄洪洞掺气减蚀设计的重点和难点。

Research for the Optimization test of outlet of flood discharge tunnel in Narrow Water Course with Large Included Angle;2. The aerators are widely used in flood discharge tunnel s and spillways to prevent the cavitation damage of the structures,and air is sucked by flow from the bottom in normal aerator.

龙抬头明流泄洪洞采用常规的底部掺气设施，容易在反弧末端下游附近侧墙处形成掺气盲区，从而导致该侧墙的空蚀破坏，反弧末端下游侧墙是龙抬头明流泄洪洞掺气减蚀设计的重点和难点。

At first, the rought C〓F〓 mixed gases are obtained by pyrolysis process of R22. A experimental pyrolysis device is designed and made by ourself. The optimum operating conditions are offered in the paper. Secondly, the much efforts is on the synthesis of R134. After through the discussion of basic thermodynamics and kinetics, selecting and preparating catalyst, it is possible that the synthesis of R134 by pyrolyzed gases hydrogenation. Base on the character of catalytic process, the kinetics equation about C〓F〓 catalytic hydrogenation is established. The rate constant of the reaction is obtained through experiment data regression. In order to achieve higher yield of R134, some optimum technological conditions is determined.

论文首先对R22裂解制成四氟乙烯混合原料气的裂解过程进行了讨论，自行设计和制作裂解反应装置，并确定裂解反应的最佳操作条件；然后，重点对R134的合成进行基础研究，分别从热力学和动力学的角度探讨以含四氟乙烯的R22裂解混合气为原料合成R134这一全新工艺的可能性，选择和制备加氢催化剂，根据催化过程特点建立四氟乙烯催化加氢反应的总包动力学方程，并在此基础上自行设计和制作中试合成装置，获得了以裂解混合气为原料合成R134的最佳工艺条件，为R134的工业化生产提供了必要的理论依据和实验基础。

In addition, the ingredients have been tested by the IR spectra which show the probability of the nano-porous structure. SEM pictures, specific surface areas and distribution of pore diameter have been tested to study the nano-porous structures in surface and some data before and after the pyrolyzing process have been gained: the size of the organic aerogel is 30~50nm, that of the carbon aerogel is about 10nm, the specific surface area increases from 341.77m^2/g to 452.75m^2/g, the density increases from 0.1708g/cm^3 to 0.3356g/cm^3 respectively.

借助有机气凝胶的红外光谱研究了其化学结构，说明其网孔结构形成的可能性；研究了有机气凝胶的扫描电镜图像、比表面积及孔径分布等，并得到碳化前后的一些对比数据：有机气凝胶颗粒大小30~50nm，碳化后约为10nm，比表面积从341.77平方公尺/g增大到452.75平方公尺/g，密度从0.1708g/立方公分增大到0.3356g/立方公分。

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。