Thus there must be a big discrepancy in the exhaust emission testing data.
因此在废气数据的测试中存在较大的误差。
Besides, exhaust emission from cars and buses has made the situation even worse.
除此之外，从汽车和公共汽车的废气排放也使得情况更糟。
Exhaust emission of vehicle engines is one of the primary air pollution sources.
车用内燃机的废气排放是大气污染的主要污染源之一。
Exhaust emission of vehicles is one of the main sources that cause serious atmosphere pollution.
汽车尾气污染是造成严重空气污染的主要因素之一。
Air pollution is quite serious in China today due to high total pollution exhaust emission level.
我国大气污染严重， 污染废气排放总量处于较高水平。
The automotive exhaust emission will do harm to people's health and destroy the ecological balance.
机动车尾气排放不仅危害人们身体健康，同时也破坏了生态环境。
More efforts should be made to BTEX emission inventory and BTEX control over vehicle exhaust emission.
提出了制订空气中苯系物的排污清单和加强机动车尾气中苯系物控制的建议。
The relationship between olefin content in gasoline and exhaust emission of gasoline engine is discussed.
讨论了汽油中的烯烃与发动机排放之间的关系。
The fuel spray is very important to the power performance, fuel consumption , exhaust emission of diesel .
燃油的雾化质量对发动机的动力性、经济性和排放性有着重要的影响。
Catalyst convertor may effectively reduce harmful exhaust emission, which is broadly used on motor vehicle.
催化转化器可以有效地减少汽车有害物的排放，在汽车上得到广泛的应用。
Its main pollution sources were industrial dust, smoke dust, exhaust emission and construction and traffic dust.
其主要污染源为工业粉尘、烟尘，机动车排放的尾气，建筑施工及道路交通产生的尘污染。
How raise the fuel economy and lower exhaust emission that is one of the important topics to vehicle industry currently.
如何提高汽车的燃油经济性和降低汽车的尾气排放是目前汽车工业急需解决的重要课题之一。
The exhaust emission of diesel engines for HD & MD vehicle has become the main controlled aim of reducing vehicle emissions.
中重型车用柴油机排放已成为降低车辆排放的主要控制目标。
With the system, automatic performance testing for exhaust emission, speed, braking, side slip and lighting will be possible.
在该系统的控制下，可实现对汽车的排放、车速、制动、侧滑及灯光等性能进行自动化检测。
The obtained conclusions are useful to solve the exhaust emission problems of the engine running at the high altitude regions.
所获得的结论有助于解决运行在高原地区的柴油机的碳烟排放问题。
The European exhaust emission limits and exhaust emission characters of light duty diesel vehicles were introduced in this paper.
本文介绍了轻型柴油车的欧洲排放标准及尾气排放特点，综述了轻型柴油车氧化催化剂技术的研究和开发进展。
Some measures to reduce and control the transient exhaust emission of vehicle diesel engines and the results were also introduced.
文中还讨论了控制和降低车用柴油机瞬态工况排放的一些措施及其效果。
It increases the temperature and fuel consume reduces at above 20%, accordingly decreases exhaust emission and circumstance pollution.
采用该项技术后提高了炉温，燃料消耗降低20%以上，减少废气排放量，降低污染。
With increasing awareness to the environmental protection, the limitation on exhaust emission of cars has become increasingly stringent.
随着国家环保法规的不断完善，对汽车有毒有害气体的排放限制越来越严格。
The power performance, fuel economy, and exhaust emission of the vehicle engines are improved considerably through the electronic control.
电子控制使汽车发动机的动力性能、经济性和排放污染得到了很大的改善。
It is very necessary to control automotive exhaust emission for the protection of atmosphere environment that mankind relies for existence.
为保护人类赖以生存的大气环境，必须严格控制汽车废气排放。
In this paper, a new type of measurement method is presented. Based on the method an on-board vehicle exhaust emission test system is developed.
本论文提出一种新的测试方法，并在此方法上研制出基于车载式的汽车尾气排放测试系统。
A technology of infrared spectroscopy diagnoses is introduced for the flame temperature and species concentration of exhaust emission of vehicles.
提出了红外光谱诊断技术用于诊断汽车废气排放物的温度和组分浓度。
With more and more strict exhaust emission standard in recent years, the motorcycle which can not be up to the emission standard will not be launched.
随着国家对大气环境治理力度的加大，摩托车排放法规会逐年加严，达不到排放法规要求的摩托车将不允许投放市场。
The oxygen sensor is widely used on modern cars is one of the sensors, the normal operation of the engine and exhaust emission control plays a vital role.
氧传感器是现代轿车上应用广泛的传感器之一，对发动机的正常工作和尾气排放控制起着至关重要的作用。
With the more and more strict exhaust emission regulation in the world, the low exhaust emission has been the first object in the engine control technology.
随着排放法规的日益严格，低排放成为发动机控制技术的第一目标。
On the basis of keeping the exhaust emission and economy performance, the engine power is improved from 80% to 95% of that one's running on the gasoline fuel.
在保持天然气汽车良好排放性与燃料经济性的情况下，使天然气发动机的功率由原来不足汽油发动机功率的80 %提高到95 %以上。
In order to improve power performance, save energy, and reduce exhaust emission of the coal bed methane engine, the accuracy of air-fuel ratio must be improved.
为了改善煤层气发动机的动力性、经济性和排放性，必须提高发动机空燃比的控制精度。
In order to improve power performance, save energy, and reduce exhaust emission of the coal bed methane engine, the accuracy of air-fuel ratio must be improved.
为了改善煤层气发动机的动力性、经济性和排放性，必须提高发动机空燃比的控制精度。
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