燃料效率

And developments in fuels are now helping with the cleaning as well as reducing engine friction, another factor that impacts on fuel efficiency.

燃料的发展正帮助像减少发动机的摩擦的清洁，另一个则是影响燃油效率的因素。

The gas diffusion electrodes in fuel cells were studied, and a novel method to make high-efficiency gas electrode was proposed.

目前碱性燃料电池因电极成本较高，电极反应效率低尚不能广泛应用。

The effect of reactor configuration and technical parameters on the gross heat efficiency and "hot spot" temperature was investigated in an autothermal operation process of methanol partial oxidation based on the balance of mass and energy balance as well as kinetics of the reactor.

在质子交换膜燃料电池移动氢源———甲醇氧化重整制氢自热体系中，研究了反应器构型对产氢能量效率和床层内&热点&温度的影响，得到了反应器设计准则，提出了实际应用中可采用的反应器型

The effects of port injected n-heptane equivalence ratio and iso-octane direct injection timing are investigated experimentally and numerically. The results indicate that the combustion mode of iso-octane is dependant on the iso-octane direct injection timing corresponding to the stage of n-heptane HCCI combustion. In case of direct injection before the low temperature reaction of n-heptane, premixed combustion of the iso-octane occurs. In case of direct injection at the NTC period or the initial high temperature reaction stage of n-heptane, the iso-octane mainly undergoes premixed combustion.

进一步采用进气道预喷正庚烷，缸内直喷异辛烷，在没有火花点火和热EGR的辅助下利用预喷正庚烷HCCI燃烧产生活化热氛围的热作用和化学作用引燃缸内直喷高辛烷值燃料异辛烷，系统研究了不同预喷正庚烷当量比和缸内直喷时刻对直喷异辛烷燃烧模式、发动机效率和排放的影响，并用三维CFD耦合化学反应动力学对其燃烧过程进行数值模拟。

This is impractical for engineering problem. It is necessary to break the shear layer in order to enchance mixing. It is very useful for combustor design with cavity or dual-cavity. In such combustor the fuel jet can break the

要使超声速混合增强，必须打破稳定的剪切层，燃烧室采用凹槽或双凹槽设计是一种行之有效的方法，它产生的燃料射流就能打破剪切层，从而使混合和燃烧效率进一步提高。

For example, thickness of the electrolyte is desired to be controlled within 15 micros with good uniformity.

除此之外，阳极与阴极的材料特性也会影响与燃料或气体接触时的反应效率。

This technology makes use of the catalyst, which is coated on the surface of the catalyst monoliths, to reduce activation energy during combustation. In this way, the combustion efficiency is improved and the pollutant emission is reduced.

催化燃烧技术是利用催化剂载体表面涂覆的催化剂来降低燃料燃烧的活化能，从而使得燃烧更易进行，这样不仅提高了燃烧效率，而且可以有效地降低污染物的排放。

Is of importance in enhancing the independent development capability of large sized wind-driven power generating units in the country,enlarging

力发电的效率和电力变换质量、降低风电的成本，使得清洁可再生能源逐步替代传统的化石燃料，以改善人

Solid oxide fuel cells are an environmentally clean and efficient source of energy.

固体氧化物燃料电池是一种能量转换效率高和环境友好的新能源装置。

Coal is still used, mostly in power stations, to cover one-quarter of our energy needs, but it is the least efficient, unhealthiest and most environmentally damaging fossil fuel.

煤仍被使用，主要是在发电站，以解决我们四分之一的能源需求。但煤确是最无效率，最不健康，最不环保的矿物燃料。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了