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1·A Russian space capsule is currently orbiting the Earth.

一个俄罗斯太空舱目前正环绕地球飞行。《柯林斯英汉双解大词典》

2·Our galaxy is so huge that dozens of lesser galaxies scamper about it, like moons orbiting a giant planet.

我们的银河系实在庞大，吸引着数十个较小的星系环绕着它奔跑，恰似环绕巨大行星旋转的卫星。

3·But such transits have paved the way for what might prove to be one of the most vital breakthroughs in the cosmos—detecting Earth-sized planets orbiting other stars.

但是这样的凌日现象已经为被证明可能是宇宙中最重要的突破之一的说法铺平了道路，这个说法即找到那些围绕其他恒星轨道公转的和地球大小相似的行星。

4·That's about how high an object would have to be orbiting straight up from the equator to constantly remain directly above the exact same spot on the rotating planet Earth.

这大约是一个物体从赤道沿轨道垂直向上运行的高度，这样它就可以一直保持在地球同一地点的正上方。

5·Denverites often kvetch about sleep disrupted by the Denver Police Department's helicopter orbiting overhead.

丹佛人经常抱怨他们睡觉的时候会受到头顶上方盘旋的丹佛警察局的直升飞机的干扰。《柯林斯英汉双解大词典》

6·Likewise, when in outer space, when you are orbiting the Earth, people are always floating around in these space stations.

同样，在外太空中，当您绕地球运行时，人们总是在这些空间站中四处漂浮。

7·It will nevertheless resemble us in that it should communicate with its fellows, be interested in the Universe, live on a planet orbiting a star like our Sun.

但是它仍然与我们相似，因为它应该也与它的同伴交流，对宇宙感兴趣，生活在一个行星上，这个行星也绕着像是太阳一样的恒星运转。

8·She is orbiting the sun as the asteroid 216 Kleopatra.

编号为216 Kleopatra 的小行星正绕着太阳运行。

9·We have an orbiting electron but a stationary nucleus.

我们有一个在轨运行的电子和一个静止原子核。

10·Around 60 countries now have satellites orbiting the Earth.

现在有60个国家有卫星在地球轨道上。

(1)in orbit在轨道上；在轨道上运行；[俚语]飘飘然

(1)earth orbit地球轨道

(1)orbit determination轨道计算，定轨

(1)low earth orbit近地轨道

(1)circular orbit圆轨道

(1)elliptical orbit卫星椭圆轨道；椭圆轨迹