燃料效率

In some extent, increasing the area of fuel nozzle will be improve the combustion efficiency of DR; 3, the angle between dual air-inlets have complex influence with the combustion of DR.

研究结果表明：(1)补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性，但也减少了燃料与空气在补燃室后段进行掺混和燃烧的长度：(2)在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率：(3)进气道夹角对冲压发动机中燃料的燃烧影响复杂，对于采用对称结构喷嘴的冲压发动机，当进气道夹角等于180°时，燃料与空气的掺混效果最好；而对于一次燃气喷嘴采用不同偏心结构的冲压发动机，补燃室内流场与燃料燃烧效率随进气道夹角变化的规律基本相似。

Some conclusions are followed:(1)the reaction ratio of boron is 12% in primary combustion;(2)the degree of agglomeration can be decreased adopting boron coated with AP;(3)the content of oxygen is very important for afterburning efficiency;(4)the afterburning efficiency will be changed with different air-gas ratio;(5)the head distance of after-burning chamber is increasing, the circumfluence in the head of after-burning chamber is stronger and the distribution of fuel backward the after-burning chamber is more well-proportioned.(6)the combustion efficiency of DR will be improved by increasing the area of fuel nozzle.(7)the angle between dual air-inlets have complex influence with the combustion of DR.

通过本项研究，取得如下结论：（1）一次燃烧硼反应比例在12～15％之间；（2）AP包覆硼，可以降低硼结团度，有利于一次燃烧喷射效率的提高，也有利于硼在补燃室进行二次燃烧；（3）进气空气中的氧含量对二次燃烧非常重要；（4）对于一定配方的含硼富燃推进剂，不同的空燃比，二次燃烧效率不同；（5）补燃室头部距离的增加能增强补燃室头部回流以及提高燃料在补燃室后段分布的均匀性；（6）在一定范围内，增加一次燃气喷嘴面积能提高冲压发动机燃料的燃烧效率；（7）进气道夹角对补燃室内燃料的燃烧影响复杂。

Then this method was applied to detect the methanol concentration change in the fuel container during the cell's long term discharge. Rough calculation shows that Faradic efficiency of our passive cell system is about 44%.

采用该方法对被动式单电池在长时间放电过程中燃料腔内的甲醇浓度的变化进行了检测，通过实验对此系统的法拉第效率进行了估算，结果表明该被动式直接甲醇燃料电池的法拉第效率可以达到44%。

It establishes the uniform, singular and two kinds of normal distributions models of diffusion layer statistical distribution, the result shows that the more singular the statistical distribution of the cathode gas diffusion layer porosity is, the better the cell performance is, and the more uniform, the worse the cell performance is.

最后，从热力学的角度分析了燃料电池过程的能量转化形式，反应的焓变主要转变成电能和热能两种能量形式；归纳了燃料电池电化学的一些基本理论模型及简单的推导过程；描述了燃料电池效率的一些不同的定义以及对采用热电联供的方式提高燃料电池能量利用效率的分析。

The results of combustion process numerical simulation of blends in blast pipe and tuyere raceway indicated that the total combustion efficiency of blends could come up to more than 90%, the combustion behavior of injecting blends in tuyere zone is between that of injecting coal and waste plastics. Hence, injecting blends of coal and waste plastics in blast furnace is feasible in theory.

高炉喷吹煤与废塑料混合燃料过程数值模拟结果表明：燃料总的燃烧效率能达到90%以上，高炉喷吹煤与废塑料混合燃料物在高炉风口区的燃烧行为介于高炉单独喷吹煤粉和废塑料两者之间，高炉喷吹混合燃料煤与废塑料在理论上是切实可行的。

The rack-mounted electric power steering system provides greater fuel efficiency of on 2.4L-equipped models that saves nearly 11 miles per tank of gas, or about 572 miles per year (assuming one fill-up per week).

在机架上安装电动助力转向系统提供了2.4升的燃料效率提高装备模型，为节省近11气体，或每年约572英里的坦克英里。

Therefore, instead of focusing on making money by innovating around fuel efficiency, productivity and design, G.M. threw way too much energy into lobbying and maneuvering to protect its gas guzzlers.

因此，通用投入了太多精力在游说议会以保证大型车的销售上；而非通过对燃料效率、生产率、和设计进行革新来获取利润。

Fuel efficiency plays a role, of course, with our somewhat heavy-footed week averaging 14.1mpg around town and 22.7mpg on the highway.

燃料效率方面发挥了作用，当然，我们有点沉重足一周平均14.1mpg周围城镇和7月22日英里的公路上。

This optimises traction as well as fuel efficiency by managing torque distribution to the rear wheels.

这牵引力进行优化控制，以及燃料效率，管理扭矩分配给后轮。

GM has made a nod to fuel efficiency by building a six-cylinder version that achieves a creditable 29 miles per gallon.

通用汽车公司提出了点头，以燃料效率建立了6缸版本，实现了可靠的29英里每加仑。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。