燃料

Basic chemical and physical properties directly related to engine performance were reformulated. The laser phase doppler anemometry.

根据燃料设计概念，选用多种含氧燃料与柴油以不同比例互溶互混，改变燃料的输运参数和化学特性。

In this paper, based on the specific CNG engine parameters and characteristics, the influence of the injection timing, ignition energy and lean combustion for the engine is tested, in order to explore the control rules of fuel injection, ignition energy and lean combustion and then draw the following conclusions: small injection advance angle of electronic controlled injection CNG engine is optimum

文章根据天然气发动机的具体参数和特性，探索电控喷射CNG发动机在燃料喷射、点火能量和稀燃等方面的控制规律，确定最优的控制参数，开展了喷射定时、点火能量及稀薄燃料等参数对发动机性能影响的试验研究工作，并根据试验结果分析，得出了以下结论：电控喷射WT615CNG发动机燃料喷射提前角要小些为宜

New sub-models for the four-way valve and the boost pump have been created by combined models. The initial parameters for the calculating analysis were determined at a rough estimate. The model has also been tested, modified and improved.

所构建的双燃料喷油器的计算模型能够较好的模拟复杂的双燃料结构特点和工作过程；采用模块组合的方法构造了四通阀和增压泵等新组件；采用估算的方法，确定了计算分析的初步参数；并对双燃料喷油器的计算模型进行了验证、调试和改进。

Langfang Jihua-trade fuels Management Company Limited was established in 2006, has been two years of coal sales history, major cities headquarters in Beijing have large freight yard with a total area of 160,447 square meters, each package of road freight yard with all the machinery Coal Unloader missing, the coal and coal transport system, sprinkler irrigation equipment, are equipped with dedicated rail lines.

标志设计，燃料经营公司标志设计，燃料公司VI设计，燃料公司标志设计欣赏廊坊冀华通贸燃料经营有限公司成立于2006年，至今已有2年煤炭销售历史，总公司在北京各大城市均有大型货场，总面积160447平方米，每个货场均拥有整套行进的机械缺卸煤、配煤系统和煤炭转运、喷灌设备，均配有铁路专用线。

The elution is caused by a fuel having a high-concentration of at least 2 M or the elution of perfluorosulfonic-acid polymer in a fuel pole into a fuel at an operation temperature of at least 80 DEG C, and an electrode catalyst elutes into a fuel to deteriorate characteristics.

溶出是由于在2M以上的高浓度燃料中和80℃以上的运行温度下，燃料极中的全氟磺酸聚合物溶出到燃料中而产生的，电极催化剂溶出到燃料中而导致特性恶化。

The study on the power performance,the fuel economy and the emission are carried out on a gasoline when using mealie straw oil mixed fuel.The torque,power,specific oil consumption of the engine were measured.

进行了汽油/玉米秸杆油混合燃料对汽油机动力性、燃料经济性和排放性能的应用研究，测量了燃用混合燃料前后内燃机的转矩、功率、有效燃料消耗率。

The heat conduction model of the PE fuel with the surface melting and pyrolyzing is developed for the H2O2-PE hybrid rocket motor. Combining with the energy fluxes balance above fuel surface, the simulation and calculation of transient heat conduction of the PE fuel with liquid layer while melting and pyrolyzing are considered by use of the moving coordinates.

建立了PE燃料的熔化、热解、导热模型，应用动坐标系，结合燃料表面热环境，对具有液体层的PE燃料的熔化、热解和内部瞬态导热过程进行了模拟计算，计算的PE燃料退移速率与国外同类试验的测量结果符合较好。

It is the first time to compare the emission of the premixing LPG/diesel dual fuel engine with that of the mixing injection LPG/diesel dual fuel engine. The results state that the NO〓 emission of the premixing dual fuel engine is lower than that of mixing injection dual fuel engine in the whole loads, but the emission of HC and CO is reverse.

研究结果表明：在整个负荷范围内，预混进气双燃料发动机的N0〓排放明显低于混合喷射双燃料发动机；混合喷射双燃料发动机的HC和CO排放较低；在小负荷二者的烟度相差不大，但在大负荷预混进气双燃料发动机的烟度较低。

Further, a vapor discharge opening and a vapor discharge valve mechanism are provided in that part of the pump channel which is between the air discharge opening and an inlet section of the pump channel. The vapor discharge valve mechanism is closed in the start of the pump, preventing negative pressure at a fuel suction opening from being reduced, and the mechanism is opened in the start of fuel pressurization, discharging fuel containing vapor to the outside of the pump channel.

另外，在上述空气排出口和泵流路的入口部之间的泵流路上设置蒸汽排出口，此外设置蒸汽排出阀机构，其在燃料泵启动时闭阀而防止燃料吸入口的负压降低，如果燃料加压开始则开阀，从而将含有蒸汽的燃料向泵流路的外部排出。

A fuel pump in which fuel injection conditions are not deteriorated by a discharge of vapor to the engine side and that achieves a large fuel suction height and a short fuel suction time.

本发明获得一种燃料泵，其不会使蒸汽向发动机侧喷出而使燃料喷出状态恶化，提高燃料吸起高度，缩短燃料吸起时间。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。