And when you fly a spacecraft repeatedly as opposed to chucking it after a single use, there's a lot of wear to repair.
不同于一次性使用的航天器，如果你打算重复使用航天器，会有许多的磨损需要修复。
Although the Soviet Union initially led the space race, the first spacecraft to fly by a planet other than Earth was an American one, and the first man on the moon was also an American.
尽管前苏联抢占了太空竞赛的先机，第一艘绕行星而不是地球飞行的太空船来自美国，第一位登月宇航员也是美国人。
For asteroids too big for a robot to handle, a large spacecraft could fly near the object to act as a gravity tractor that deflects the asteroid's trajectory, sending it toward Earth.
如果行星对于机器人来说比较大的话，也可以使用一艘大型的宇宙飞船将行星拉离原有的轨道，而向着地球的方向前进。
Such fly-bys give spacecraft a whip-crack of extra speed【3】 on their tour through the solar system.
在太阳系中漫游的宇宙飞船当其靠近地球作低空飞越时，会加上一个额外速度。
A NASA spacecraft began orbiting Mercury, becoming the first to fly around the solar system's innermost planet, the space agency said.
(美国)宇航局称，NASA的一个航天器开始绕水星轨道航行，成为第一个环绕太阳系最内侧行星飞行的航天器。
For asteroids too big for a robot to handle a large spacecraft could fly near the object to act as a gravity tractor that deflects the asteroid's trajectory sending it toward Earth.
对于机器人无法捕获的较大的行星，则派一艘大型宇宙飞船接近，利用重力牵引使行星偏离轨道，飞向地球。
NASA's Galileo spacecraft did a fly-by of Jupiter's second largest moon in 1996 and 1997 and found that Callisto's magnetic field varied, indicating currents.
NASA的伽利略号太空船在1996年和1997年低空飞越这颗木星的第二大卫星，他们发现木卫四的磁场在不断变化，这意味着存在电流。
This is a prediction that can be tested once the NASA's New Horizons spacecraft arrives in 2015, the first probe specifically designed to fly by Pluto and its moons.
等到2015，一旦美国宇航局的新视野号宇宙飞船抵达目的地，这一推测将得到印证。新视野号是第一个专为环绕冥王星及其卫星飞行的探测器。
As you know , man can fly in the sky by spacecraft and A human being has master the technology of the clone, so is there anything we can't realize ?
人类实现了飞天梦想，人类实现了克隆技术，还有什么不能实现的？
After submitting, watch your name fly to the space and orbit around the moon for one year at a minimum when LRO spacecraft is launched later this year.
提交后，看你的名字飞往空间和轨道绕月球一年，在最低限度时，现行的航天发射今年晚些时候推出。
The Planetary Society would be taking baby steps to build and fly a series of solar-sail spacecraft.
行星协会将进行初期的实验，建造并试飞一系列这样的光帆飞船。
The Planetary Society would be taking baby steps to build and fly a series of solar-sail spacecraft.
行星协会将进行初期的实验，建造并试飞一系列这样的光帆飞船。
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