Aviation: "Green" jet engines, able to power aircraft while producing fewer emissions, are under development. Which design will prevail?
航空业:正在研制的环保型喷气发动机,功率要大,排放要少。哪种设计方案领先?
It would also need to be only half the size of a conventional jet of similar power, says Dr Lior.
Dr Lior还说,它和类似动力的传统引擎相比,只有一半大小。
Up near the jet stream above New York, the wind power density can reach 16 kilowatts per square meter.
在纽约上空的射流层(对流层顶)附近,风能密度可达16千瓦每平方米。
London, England (CNN) — Money, power, a jet-setting lifestyle — why wouldn't you want to be a CEO?
伦敦,英国(CNN)——钱,权,奢侈的生活方式——为什么你不愿意成为CEO的原因?
The actuator at an angle can change greatly the primary jet direction and has a good effect on thrust vectoring without increasing input power.
在不增加激励器输入功率的情况下,带倾角激励器可以极大地增加主流偏转角度,推力向量控制效果很好。
To ease its entry into the market, R-Jet reckons OCN engines could be used first as generators to produce electricity or to power an unmanned drone.
为了方便的进入市场,R - Jet觉得OCN引擎可以先作为发电装置或是用来驱动无人驾驶飞机。
The jet had one of its engines connected to a biofuel tank providing 20 percent of its power.
这架飞机的一个发动机被连接到一个生物燃料箱,可为其提供20%的动力。
Are you able to survive you quick response you reliable Jet engine power to the laying of the road.
你能否生存全看你快速的反应,你可靠喷气引擎的力量来铺设道路。
The jet successfully completed its journey and proved that biofuels can help power an aircraft.
这架飞机成功地完成了它的旅程并证明生物燃料可用于驱动飞机。
A high power efficient Eh6G dye laser pumped by a copper vapor laser was developed with longitudinally pumped geometry and jet stream on the basis of this theory.
根据这个理论,设计了一台用铜蒸气激光泵浦的、具有纵向泵浦结构和喷流的高功率高效率若丹明6G染料激光器。
I start pushing the throttles up into MIL power just prior to where the jet starts the tail slide.
就在飞机开始要进入尾滑的时候,我重新把油门推入到军用推力的位置。
I'm in MIL power initially, but then I back out to continue to slow the jet down.
一开始的时候我的油门是在军用推力状态下,但接下来我就要把它退出来使飞机减速。
Jet fuel and power prices will also increase.
喷气燃料和电力价格也将增加。
Also, the experiments had been carried out to study the effects of the high-pressured water jet power, the amount and composition of grinding medium and the impact time on the comminuting capability.
通过试验方法研究了高压水射流功率、研磨介质的填充量和配比、冲击时间等对该装置粉碎能力的影响。
People say that maneuver looks like the jet is turning inside of itself as I execute a mini power loop at the top.
人们说我在大回环的顶端做这个机动时飞机就好像是在绕着自己打转。
He told CNN, only a couple years ago, no one believed it would be possible to power a jet on biofuel.
他告诉CNN,仅在两年前,还没有人相信使用生物燃料驱动喷气飞机。
This chain eventually led to jet aircraft, nuclear power, and giant radio telescopes .
这一链条后来导致了喷气式飞机,原子能和巨型射电望远镜的发明。
Anyone in a moving jet plane can feel the power of the engines.
在一个正在运动着的喷气式飞机里,任何一个人都可以感觉到这些发动机的力量。
On its return journey the aircraft could then transition back to jet power and land like a traditional jetliner on a conventional runway.
返还地面时,这种引擎还能“变回来”,用传统的喷气动力让飞机在普通跑道上降落。
Diamond film wafers with different thickness were prepared by high power DC arc plasma jet CVD method.
采用高功率直流电弧等离子体cvd工艺制备了不同厚度的无裂纹自支撑金刚石厚膜。
The power of the optimum full-size pulsed jet nozzle is 1.5 times that of the ordinary ones of the same size.
所得最优的全尺寸脉冲喷嘴的功率是同尺寸普通喷嘴的1.5倍。
Some experimental formulae about jet sound power and jet noise pressure which are contributed by the noise Control Laboratory of the Pennsylvania State University are recommended.
接着推荐美国宾州大学噪声控制研究室关于喷流声功率与声压级的经验公式。
This paper proposed a new kind of compound water power comminuting device based on high-pressured water jet technology and made an analysis of its comminuting mechanism.
在现有的高压水射流粉碎技术的基础上,提出了一种新型的复合式水力粉碎装置,并探讨了其粉碎机理。
The piezoelectricity ceramic power supply is the core components of piezoelectricity ink-jet printer.
压电陶瓷驱动电源是压电式喷墨打印机的核心部件。
Through these design ways, the valid length of jet and the penetration power of shaped charge were improved evidently.
这种改进大大增加了有效射流长度,可使聚能装药的破甲威力大幅度提高。
The ordinary differential equation of round laminar jet of power-law fluid is derived, and the solution of this equation by numerical integration is obtained.
用层流边界层方程,导出幂律流体轴对称层流自由射流的常微分方程,并给出其方程的数值解。
Bicycles and perhaps skates may be run by jet power, and a new thing to ride may be a small flying saucer.
自行车或许溜冰滑板可能由喷气动力推动。一种新型的可开的东西可能就是一个小飞碟。
Bicycles and perhaps skates may be run by jet power, and a new thing to ride may be a small flying saucer.
自行车或许溜冰滑板可能由喷气动力推动。一种新型的可开的东西可能就是一个小飞碟。
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