尾气

The mainest environment problem has the whole world air temperature to change now warm, air pollution , water resource contaminate wait, specifically for all above problem, blowoff I think that the primo ought to control the automobile tail gas, the tail gas sends warm air pollution to make and the air temperature is changed into more than the correct or required number to have interwovenness relation , secondary, the industrial sewage and domestic sewage overanxious and purifying, cut down contaminating to water resource.

现在最主要的环境问题有全球气温变暖，大气污染，水资源污染等，针对以上问题，我觉得首先应当控制汽车尾气的排放，过多的尾气派发与气温变暖和大气污染有着密不可分的关系，其次，过虑和净化工业废水和生活污水，减少对水资源的污染。

High-performance rare earth oxygen storage material ceria is the key material of automotive exhaust gas purification catalyst. It determines the performance and life time of the catalyst and has become the focus of competition of all countries in the field of automotive exhaust gas purification catalyst.

高性能稀土储氧材料CeO2是汽车尾气净化催化剂的关键材料，决定着催化剂的性能和寿命，是各国在汽车尾气净化催化剂领域竞争的焦点。

A set of device was designed for collecting tailpipe exhaust,by which all three states of exhaust were gathered directly from tailpipe.Particles were collected with particle sampler,gas phase with XAD-2 resin and poly urethane foam in a U-typed tube and liquor condensate with condensator.

为了全面地分析汽油车尾气中的液、固、气态各类成份，根据汽油车尾气直排气的特点设计了一套采样装置，以粉尘采样器采集了颗粒物成份，以XAD-2树脂和聚氨酯泡沫采集了气态成份，以冷凝器采集了冷凝液成份。

It includes:the items and methods of the investigation into motor vehicle exhaust emission; how to calculate the emission factor;how to choose and set the atmospheric pollutants diffuseness model in urban street;how to calculate the quantum of vehicle exhaust emission and the concentration of traffic pollutants diffuseness in street in traffic network,and how to evaluate traffic pollution of traffic network load.

以可持续发展的城市交通规划理念为基拙，探讨了城市交通规划过程中机动车对空气污染的影响进行分析的关键技术：机动车尾气排放的调查内容与调查方法、单车排放因子的确定、城市街道污染物扩散模型的选择和建立、交通网络环境条件下机动车尾气排放量和街道污染物扩散浓度的计算及交通网络负荷条件下交通污染评价。

The paper calculates the composition of the waste gas of high pressure scrubber before and after hydrogen peroxide passivation in the carbon dioxide stripping urea plant,studies the explosibility of the waste gas,and makes proposals of production operatio

计算二氧化碳汽提法尿素装置采用双氧水钝化前后高压洗涤器尾气的组成，讨论该尾气的燃爆性，提出生产操作建议。

Formaldehyde is absorbed by an acidic saturated solution of 2,4-dinitrophenyl hydrazine and converted to its hydrazone; the hydrazone is then extracted with CS2 and quantitated by GC.

利用尾气中的甲醛与2，4-二硝基苯肼酸性饱和溶液反应生成甲醛腙的特性，通过检测甲醛腙的浓度来检测尾气中的甲醛含量。

So the system COREX off gas shaft furnace process simulation and training is set up. The distribution of flow field, pressure field, and temperature field, and concentration field are obtained Technician can directly see the distribution of gas and burden flow and can understand deeply shaft furnace process principles et al. This system can compute material and energy balance and production cost et al. It can train operator and technician et al.

为此我们利用前面开发的综合竖炉数学模型，开发了利用COREX尾气的竖炉过程的仿真培训系统，以使从事此过程的技术人员能够深入了解COREX尾气竖炉还原过程的原理、反应过程等内部现象，直接观察到竖炉内部气流、物流及气体压力、温度和浓度的分布；对COREX尾气竖炉工艺可进行能流物流平衡和生产成本计算；并对操作人员和工程技术的人员可进行教学培训功能等。

Modification of vent gas treatment system in extraction plant;2. The operating mode of the engine and the composition of vent gas has the most direct connection.

尾气成分与发动机的工况有最直接的联系，通过实验总结出发动机各部分技术状况与尾气成分间的关系，分析了尾气成分异常的原因。

It analyses the current situation of the petrol car and fuel's production, purchase tax, road maintenance cost, tail gas supervision, the petrol car retrieve, and puts forward the suggestions of further improvement, it founds different purchase tax and fuel tax, in order to set up a controlling petrol car's tail gas legal system to reduce the petrol car's tail gas and avoid the air pollution and fuel consumption, encourages the development of small displacement petrol car and clean automobile, finally to structure a harmony and developing society and achieve the mankind's continuous development.

对现行的汽油车和燃油生产状况，购置税现状，养路费现状以及交通、尾气排放监管、汽油车报废和回收等进行分析，提出进一步依法改进和完善的建议，并创设了差别汽油车购置税、燃油税等依法控制手段，以期建立一个系统、有效的控制汽油车尾气排放的法律制度，达到减少汽油车尾气排放量的目的，从而减少大气污染，减少燃油消耗，鼓励小排量汽油车和清洁汽车的开发和研制，最终构建一个和谐、有序发展的社会，实现全人类的可持续发展。

The vehicle development from the perspective of the current environmental problems, atmospheric pollution focuses on the current status of the environmental impact of vehicle exhaust and hazards analysis, and management of vehicle exhaust from the perspective of atmospheric pollution control measures and methods, Then on the theory and practice of how to develop natural gas vehicles of the main issues of tentative study that the development of natural gas vehicles is vigorously addressing vehicle exhaust pollution to the atmosphere of the best ways.

内容摘要：本文从汽车发展的角度来考虑当前的环保问题，着重针对大气污染的现状，对汽车尾气对环境的影响及其危害进行分析，并从治理汽车尾气的角度提出大气污染治理的措施与方法，然后对如何发展天然气汽车理论和实践中的主要问题进行了尝试性的研究，指出大力发展天然气汽车是解决汽车尾气对大气的污染问题的最好办法。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。