赤道是一条假想的环绕地球腰部的线。
The equator is an imaginary line around the middle of the earth.
一个俄罗斯太空舱目前正环绕地球飞行。
一颗新的人造卫星被送上了环绕地球的轨道。
作者提出的最大担忧是太空碎片，即环绕地球的“垃圾”碎片，如果它们与包括国际空间站在内的运行体相撞，将有可能造成严重损害。
The greatest concern the authors raise is space debris—pieces of "junk" that orbit the earth, with the potential to cause serious damage if they collide with operational units, including the ISS.
两位作者提出的最大担忧是太空垃圾——环绕地球运行的“垃圾”碎片，如果它们与包括国际空间站在内的运行单位相撞，可能会造成严重损害。
The greatest concern the authors raise is space debris-pieces of "junk" that orbit the earth, with the potential to cause serious damage if they collide with operational units, including the ISS.
例如你在环绕地球的，某一点，这一个卫星。
For instance, you're at a particular position around the Earth, here at a satellite.
能量将环绕地球并影响到其上的你们每一个人。
赤道环绕地球。
当联盟号开始环绕地球的时候，失败随之降临了。
Once the Soyuz began to orbit the Earth, the failures began.
这是因为月球环绕地球的轨道是卵形的或者椭圆形的。
This is because of the Moon's orbit around Earth which is oval or elliptical in shape.
空间站环绕地球一周需要1个半小时，每天可以转16周。
It takes the space station one and a half hours to fly around the planet, making for 16 complete laps a day.
月球自转一直变慢，直到相当于环绕地球一周所花费的时间。
Over time the Moon rotation slowed until it equaled the time it took the Moon to go around the Earth.
Piccard 先生曾是气球不间断环绕地球的团队一员。
Mr. Piccard was part of a team that carried out the first non-stop circumnavigation of the earth in a balloon.
环绕地球飞行的最佳时节是六月到八月，而这段时间早已过去了。
The best weather for flying around the world is from June to August. That time was far past.
其中一些被推入环绕地球的轨道，另一些则飞向月球和其他星球。
Some were propelled into orbits around the Earth; some journeyed to the moon and planets.
这些卫星位于一个十分特殊的轨道，以便它们能每隔24小时环绕地球一周。
The satellites sit in a very special orbit that allows them to circle the Earth once in 24 hours.
国际空间站的轨道离地354公里(220英里)，每隔92分钟环绕地球一周。
The International Space Station orbits 354 kilometers (220 miles) above the Earth, completing one trip around the globe every 92 minutes.
这意味着月球环绕地球的就是在221 000英里到252 000英里之间。
This means that as the Moon orbits Earth its distance varies from about 221, 000 to 252, 000 miles.
喷发还产生了环绕地球7次的大气冲击波，冲击波产生的噪音5000千米外都能听到。
It also generated an atmospheric shock wave that travelled around the Earth seven times, and noise from the blast was heard up to 5, 000 km away.
例如，对于环绕地球的航天飞机内的宇航员而言，他们似乎是以直线方式在太空中运行的。
For example, to the occupants of the shuttle orbiting the Earth, it can look like they're traveling on a straight line through space.
去年两个人造卫星相撞，留下上百片十公分大小的碎片散布在环绕地球的轨道上。
TWO satellites collided last year leaving hundreds of pieces of shrapnel more than 10cm across orbiting the Earth.
设想一下火车在2050年1月出发，它环绕地球100年，在2150年新年火车停下来。
Imagine that the train left the station on January 1, 2050. It circles Earth over and over again for 100 years before finally coming to a halt on New year's Day, 2150.
月球的轨道是椭圆的，因此，就意味着它不是以正圆的方式环绕地球公转，而是椭圆。
The Moon's orbit is elliptical, meaning it does not follow a circular but rather an oval path.
环绕地球的卫星能看到什么，以及相对于宇宙地球的适当的定位，如同我们看到的一样。
What we see here are satellites around the Earth, and the Earth in proper registration against the universe, as we see.
智利断层活动产生的地震波环绕地球数圈之后又袭击了加利福尼亚，触发了加利福尼亚中部的微震。
The seismic waves released during the Chilean fault movement traveled around the world several times and triggered microquakes in central California.
因为有卫星的头衔，而且沿椭圆形轨道环绕地球运行，月亮似乎每天平均51分钟返回到天空的同一地点。
Due to the moon's titled and elliptical orbit around Earth, the moon seems to return to the same place in the sky 51 minutes later each day, on average.
——阿诺德·斯班塞·琼斯爵士，英国皇家天文学家，1957(2周后斯巴尼克人造卫星环绕地球)。
Sir Harold Spencer Jones, Astronomer Royal of the UK, 1957 (two weeks later Sputnik orbited the Earth).
——阿诺德·斯班塞·琼斯爵士，英国皇家天文学家，1957(2周后斯巴尼克人造卫星环绕地球)。
Sir Harold Spencer Jones, Astronomer Royal of the UK, 1957 (two weeks later Sputnik orbited the Earth).
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