It's lead, engine exhaust and coal form.
手机也会排放废气以及煤化物。
This paper briefly analyzed the material of diesel engine exhaust valve.
本文就对柴油发动机排气门材料进行了简要的分析。
Other substances in that category include the pesticide DDT and gasoline engine exhaust.
该类别中的其他物质还包括了杀虫剂、农药以及汽车引擎所排放的尾气。
A test bed for the performance study of Marine diesel engine exhaust silencers was designed and built.
设计并建造了一种用于船用柴油机排气消声器声学和气动性能试验研究的台架。
The power generation technology utilizing the temperature difference of engine exhaust gas is introduced.
介绍了利用发动机排气余热的温差发电技术。
Gas chromatography (GC) technology was used to analyze the ethanol and acetaldehyde in engine exhaust gas.
介绍了利用气相色谱分析技术分析发动机尾气的方法。
The features and harmfulness of noises including the traffic noises produced by engine exhaust, tyre, horn, etc.
介绍噪声的特征、危害性和交通车辆噪声，包括汽车排气噪声、发动机噪声、轮胎噪声和喇叭噪声等。
Diesel engine exhaust is not normal, often the engine is unable or difficult to launch the accompanying phenomenon.
柴油机的排气不正常，经常是发动机无力或不易发动的伴随现象。
The jet leaves contrails in its wake due to the temperature difference between the hot engine exhaust and the cold air.
这架喷气式飞机飞行时留下的凝结尾是由于其发动机与冷空气之间的温差造成的。
The exact measure of the engine exhaust gas emissions is very important to study and control the exhaust gas emissions.
准确的测量内燃机尾气排放值是研究和控制内燃机排放的重要环节。
The thermal stress of internal combustion engine exhaust manifold was calculated with the fluid-structure coupled simulation.
采用流固耦合方法计算了内燃机排气歧管的热应力。
Reasonable choice and correct design of the diesel engine exhaust system is an important part of diesel engine system design.
合理选择和正确设计柴油机的排气系统是柴油机总体设计的一项重要内容。
It is concluded that the refrigerating capacity at constant Evaporating temperatures varies with the engine exhaust power output.
该制冷机的工作特性表明在不变蒸发温度时，制冷机冷量随发动机排气功率变化。
The results show that the one-step temper embrittlement (OSTE) is the main factor to cause the crack of engine exhaust pipe washers.
对开裂的发动机排气歧管垫片进行了失效分析，发现产生第一类回火脆性是导致垫片开裂的原因。
Engine exhaust noise is one of the main sources of automobile noise, and using of silencer is an important method controlling exhaust noise.
发动机排气噪声是汽车噪声中一个主要声源，消声器是控制排气噪声的一个重要方法。
After preparing sufficient biodiesel, the impact of the biodiesel on diesel engine exhaust emissions was evaluated and compared to diesel fuel.
为了了解生物柴油在发动机上的排放特性，进行了生物柴油和柴油的排放性能对比试验。
This test can be successfully applied to the study of coatings used for extending the service life of internal combustion engine exhaust valves.
本试验结果已成功地指导了延长内燃机排气阀使用寿命的涂层研究工作。
Many of the difficulties just described are avoided by the use of an auxiliary ejector and an engine exhaust diffuser which are placed in tandem.
利用直列放置的发动机排气扩压器和辅助引射器，可以避免上述许多困难。
The working principle of the system is: DPF filters the particulate matter (PM) in diesel engine exhaust, to make emission up to certain standard.
系统工作原理是：DPF过滤柴油机排气中的颗粒物（PM），从而使排放达到相应的标准。
Brake system of the existing JN162 truck, consists of dual-line foot brake, spring actuated and air cut-off parking brake and engine exhaust brake.
原JN162型载货汽车的制动系，装有双回路行车制动装置、弹簧储能断气式驻车制动装置和发动机排气制动装置。
A partial flow dilution sampling and measuring system for automotive diesel engine exhaust particulates was designed and a prototype was manufactured.
本文设计了一种测量车用柴油机排气微粒的分流式稀释取样系统并制出了实验样品。
Effects of the dissolved CO2, the dissolved air and the dissolved gas levels on the combustion properties and engine exhaust emissions were evaluated.
着重探讨了燃油溶解二氧化碳或空气后对发动机燃烧特性和排放生成的影响。
Correlative problems on engine exhaust gas of self-dumping truck at open pit are analyzed. And technical measure for treating exhaust gas is put forward.
分析了露天矿自卸汽车柴油发动机废气排放的相关问题，提出废气处理的技术措施。
Engine exhaust noise is a main source for construction machinery noise, and it has a very significant impact on the level of construction machinery noise.
发动机排气噪声是工程机械整机噪声中最主要的噪声源，对于工程机械整机噪声水平的高低有重要的影响。
The fracture failure of the piston engine exhaust pipe was analyzed from welding structure defects, welding structure defects and working environment etc.
针对某活塞式发动机排气管断裂现象，从断裂处焊接结构缺陷、焊缝组织缺陷和零件工作环境等方面进行分析。
The effectiveness of a diesel oxidation catalyst attached to a diesel engine exhaust is unexpectedly enhanced by the presence of ethanol in the diesel fuel.
柴油燃料中存在乙醇，令人意想不到地提高了连接到柴油发动机废气的柴油机氧化催化剂的有效性。
This paper gives a comprehensive failure analysis on the thermal fatigue crack of engine exhaust manifold and makes an improvement for materials and structures.
对某车型发动机排气歧管的热疲劳断裂问题进行综合失效分析，并从材料、结构方面提出改进意见。
The diesel engine exhaust pipe is packed with high efficient insulation jacketing, which can play the effect of insulation and protection, and avoid body burns.
柴油移动空压机排气管上包裹了高效的隔热套，对排气管起到隔热和防护的作用，避免人体被烫伤。
The alloy is particularly useful for manufacturing engine exhaust valves and other high temperature engine components subjected to corrosion, wear and oxidation.
该合金对于制造发动机排气阀和其它经受腐蚀、磨损和氧化的高温发动机组件是特别有用的。
The idea is to oscillate the turbocharger's variable geometry and synchronise it with the engine exhaust to get better energy recovery from the pulsating exhaust flow.
这个创意是通过调节涡流增压器的结构来使它与引擎尾气排放同步，从而达到更好的能量回收效果。
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