研制了一种轻型汽车排气污染物模态分析系统。
A modal analysis system for light truck exhaust gas pollutant has been developed.
柴油机在不同运转工况下其排气污染物的排放量是不同的。
The emission of a diesel engine differs in different operating conditions.
通过数值计算的方法分析了城市街道峡谷内机动车排气污染物的扩散特性。
The dispersion characteristics of vehicular pollutant within street canyon were analyzed by using the method of numerical calculation.
本文分析了柴油车排气污染物的组成、危害及目前所采用的一些主要的后处理技术。
The composition, health impact and after-treatment technology of particulate matter from diesel vehicle exhaust gases are reviewed.
本文对摩托车排气污染物的形成、影响因素进行了分析，并指出了机内与机外净化措施。
This paper analyses the forming and effects of motorcycle. exhaust emissions, and points out the purifying approach of both in-engine and out-engine parts.
本文根据百余种国产摩托车排气污染物底盘测功机工况法测试结果，建立了相应的数据库。
Depending on chassis dynamometer test results from more than 100 motorcycles a relative database has been set up.
催化剂技术是治理汽车排气污染物的重要手段之一，催化转化器是控制汽车尾气排放的主要设备。
Catalytic technique is one of the major way in purification of automotive exhaust gases, and catalytic converters are main devices for control of automotive emission.
摩托车排气污染物测试分析系统是进行工况法分析不可缺少的设备，因此应建立完善的标定程序。
The test analysis system for motorcycle emissions is a necessary device when the code method analysis is carried out, therefore a perfect calibration program should be established.
这些污染物常常与其他有害物质，如铅、锌和地面臭氧一起出现。地面臭氧是汽车排气与太阳光一起发生光化学反应形成的一种烟雾成分。
The pollutants often occur with high levels of other toxins such as lead, zinc, and ground-level ozone, a component of smog formed by chemical reactions between car exhausts and sunlight.
采用如低起燃温度催化剂、密耦催化剂、HC捕集器、二次空气注入和电加热催化剂等在内的排气后处理技术，可以有效地减少污染物尤其是HC的排放。
It may effectively reduce the HC emissions to use a catalyst with low light-off temperature, close-coupled catalyst, HC traps, second air injection and electrically heated catalyst.
在金华，即使污染不那么严重的日子，城市的天际线也都消失在烟尘之中，越来越多的大气污染物是从机动车排气管中排出的。
On all but the best days in Jinhua, for example, the city skyline disappears behind a dense haze of smog and particulates; more and more of that atmospheric soup is pouring out of tailpipes.
气体的控制包括：从排气流中除取污染物，使污染物产生化学反应，或改变产生污染物的流程。
The control of gases involves the removal of the pollutant from the exhaust gas stream, a chemical change in the pollutant, or a change in the process producing the pollutant.
气体的控制包括：从排气流中除取污染物，使污染物产生化学反应，或改变产生污染物的流程。
The control of gases involves the removal of the pollutant from the exhaust gas stream, a chemical change in the pollutant, or a change in the process producing the pollutant.
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