查询词典 combustion engine

DME,as a kind of alternative fuel of diesel engine,has been researched by the worldwide engine researchers for many years and a profound understanding of the spray,autoignition,and combustion process of DME has been acquired.

多年来各国对DME作为柴油的代用燃料作了大量的研究，对DME的喷雾过程、自燃着火过程和燃烧过程等方面有了较为深入的了解。

The primary influence on delivered engine performance is the combustion chamber combustion process, which is largely dictated by two parameters:(1) the propellant mixing/distribution efficiency and (2) the evaporation/reaction efficiency.

主要的影响发表了发动机性能是燃烧室燃烧过程，这主要是取决于两个参数：（ 1 ）推进剂混合/分配的效率和（ 2 ）蒸发/反应效率。

In the third chapter of this dissertation, based on the physical and chemical properties of hydrogen and the combustion characteristics of hydrogen, the quasi-dimension combustion calculation model of hydrogen-fueled engine is set up through analyzing the characteristics of turbulence flame and chemical reaction kinetic of hydrogen-air mixture.

但是，对氢燃料发动机燃烧模型的研究尚处于空白。

The compression ignition and combustion of the newly designed combustion system of the natural gas engine have been investigated.

研究了新的燃烧系统起动和工作过程。

In addition, the HC and CO emissions are much lower than the emissions of HCCI and the indicated thermal efficiency of HCCI/DI is higher than the prototype diesel engine.Furthermore, without spark ignition and hot EGR, the HCCI/DI combustion of in-cylinder directly injected iso-octane is achieved with the induction of thermal and chemical active atmosphere generated by the HCCI combustion of port injected n-heptane.

通过对燃料理化特性、预混合率和缸内直喷时刻这三个影响因素的优化，实现了对HCCI/DI燃烧相位、放热分布和形态的调制，使发动机的负荷拓展到全负荷，在全负荷范围内NOx排放低于40×10-6排放水平，HC和CO排放显著低于HCCI燃烧，同时发动机指示热效率η_i高于原机柴油直喷的水平。

In boiler field, proper atomization of high viscosity liquid fuel is the essential assurance to safe .stable and high efficient combustion for boiler; in the propulsion equipment of rockers and turbo jet-propelled engine, the atomization quality of liquid fuel is the precondition to improve combustion efficiency and supply sufficient propulsion; in the field of industrial manufacture, metal powder is made by liquid metal which is impacted by high velocity gas; in the field of agricultural irrigation, the water with certain velocity is used to strike metal disk to make insufflations proportionally to the irrigation field; in the technique of desulphurization and coal gasification, proper design of nozzle is the essential factor to advance the efficiency of desulphurization and coal transformation.

在锅炉领域，高粘度液体燃料的良好雾化是锅炉安全稳定高效燃烧的重要保证；在火箭推进装置、涡轮喷气式发动机中，液体燃料的雾化质量是提高燃烧效率并产生足够推力的前提；在工业生产领域，用高速气流冲击液态金属来制备金属粉末：在农业灌溉中，用一定速度的水流冲击金属圆盘破碎并改变方向实现对灌溉区域的均匀喷洒：在烟气脱硫、煤气化等工艺中，良好的喷嘴设计是提高烟气脱硫效率和碳转化率的重要因素。

The engine has a low pressure compressor driven by a multi-stage turbine; the power to drive the turbine is derived from combustion of kerosine and liquid oxygen in a rocket-type combustion chamber.

这种发动机有一多级涡轮驱动的低压压气机；而驱动涡轮的功率是在火箭型燃烧室中燃烧煤油和液氧产生的。

Investigation results show that DME engine has shorter ignition delay, lower peak pressure, lower maximum rate of pressure rise, smaller premixing combustion amount and larger diffusion combustion amount.

首次研究了排气再循环对二甲醚发动机排放和性能的影响，结果表明：二甲醚发动机可以容许较大的EGR率来降低NO〓排放而不会恶化发动机热效率和HC排放。

The prediction procedure for instantaneous radiative heat flux from media to the wall in a diesel engine combustion chamber are presented. The radiative heat flux in G4135 combustion chamber using above software are also calculated and yield an entirely satisfaction result.

8在上述模型研究的基础上，编制了一套&柴油机缸内空间辐射热流分布&的计算软件，并结合实验数据，对燃烧室各火力面的辐射热流量进行了模拟计算。

Concerning the physical process of the combustion and the heat transfer in the thrust chamber of the tripropellant liquid rocket engine, a numerical simulation method is developed about the interior combustion and the exterior regenerative cooling.

本文针对三组元液体火箭发动机推力室燃烧与传热的物理过程，对推力室内燃烧及外部再生冷却进行了仿真研究。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷