Sans wheels, which were needed for last year’s simulations to the surface of the moon, the vehicle could be transformed for asteroid exploration by mounting it on a flying platform, says NASA.
美宇航局说,这个太空探索车是去年月球表面太空模拟的必备工具。 这一工具可以改造一下,安装在一个飞行平台来适应小行星探索。
If all goes to plan, the 1.5-tonne satellite should be flying over the pockmarked lunar surface November 11.
如果一切按照计划进行,这个1.5吨重的卫星将会在11月11日飞临布满环形山的月球表面。
But sometimes a shark breaches the surface when it feels another shark underneath it. They [move] like a flying fish and end up several metres away.
但有时当一条鲨鱼感到有另一条鲨鱼在它下面是,它会像飞鱼那样飞起来落到几米外的地方。
This, the researchers believe, is caused by the surface of the water smoothing out a vortex of air coming off the flying fish and reducing drag.
研究者相信,这源于水面平滑了飞鱼迎面的风涡,降低了阻力。
Unusually tall columns, flying buttresses, towering spires, and narrow windows, all create vertical lines that appear to jut out perpendicular to the surface of the Earth.
这些建筑常常有高高的柱子、飞拱、高耸的尖塔和逼仄的窗子,所有这些都构造出竖线,看上去,都突出来与地表垂直。
Occasionally, flying fish broke the surface of the water, gliding along the waves.
时不时的还有飞鱼踊出水面,沿波滑翔。
Portable grinding tools need to be equipped with safety guards to protect workers not only from the moving wheel surface, but also from flying fragments in case of breakage.
便携式研磨工具应装有安全防护装置,这样不仅可防止工人接触运转的砂轮表面,而且他们也不会被破裂时飞溅的碎片击中。
"The plane appears to have hit the surface of the water in flying position with a strong vertical acceleration," he noted, adding that the plane's belly hit the water first.
他指出:飞机看上去是在飞行方向上带着很强的垂直加速度撞到水面上,另外是机身的腹部首先撞到水面。
The rays are often seen gathering in groups near the surface, "flying" through the water by flapping their pectoral fins and sometimes even leaping porpoise-like into the air.
鱼经常会成群的聚集在水面以下,通过拍动胸鳍在水中“飞行”,有时候甚至会像海豚一样跃出。
Excellent work surface, complete with flying marking system support, without changing the configuration.
优良的工作台面,能与飞行标记系统完全配套,无需更改配置。
The high-aspect-ratio flying wing eliminates vertical tail and conventional rudder, and uses instead a split drag rudder with large deflection as its directional control surface.
大展弦比飞翼布局飞机取消了垂尾和常规方向舵,通常采用大偏角的开裂式方向舵作为偏航操纵面。
It also has special advantages of decreasing energy of wave upward and surface damage, avoiding punching, eliminating flying-rock risk and enhancing security.
并在减弱上向波能和对地表的破坏、避免冲孔、消除飞石危害、及增强安防能力方面有独到的优越性。
Flying saw is the important equipment for pipe flow production line. It not only controls the accuracy of pipe length, but also restricts the production speed and cut surface quality.
飞锯机是管材连续自动生产线上的关键设备,它不仅控制管材的定尺切断精度,同时制约着生产线的生产速度和切口质量。
Some aerodynamic laws of aircraft flying near sea surface are given through the analysis of results calculated and tested on a typical configuration.
通过典型外形的计算、试验结果分析,提出了地效区内空气动力的一些规律。
This paper analyzes the impact of the variation of coal proportion on flying-ash erosion in heating surface at the rear of coal-fired boiler.
飞灰磨损是导致锅炉受热面管壁减薄失效的一个重要因素,煤质的好坏又直接影响着飞灰磨损的强度。
This paper analyzes the impact of the variation of coal proportion on flying-ash erosion in heating surface at the rear of coal-fired boiler.
飞灰磨损是导致锅炉受热面管壁减薄失效的一个重要因素,煤质的好坏又直接影响着飞灰磨损的强度。
应用推荐