orbit

英 [ˈɔːbɪt]

美 [ˈɔːrbɪt]

n. (天体等运行的)轨道; (人、组织等的)影响范围，势力范围
v. 沿轨道运行; 围绕…运动

复数：orbits　现在分词：orbiting　过去式：orbited　第三人称单数：orbits　过去分词：orbited　

Collins.2 / BNC.6177 / COCA.4178

牛津词典

noun

（天体等运行的）轨道
a curved path followed by a planet or an object as it moves around another planet, star, moon, etc.
1. the earth's orbit around the sun
  地球环绕太阳的轨道
2. a space station in orbit round the moon
  绕月球运行的一个航天站
3. A new satellite has been put into orbit around the earth.
  一颗新的人造卫星被送上了环绕地球的轨道。
（人、组织等的）影响范围，势力范围
an area that a particular person, organization, etc. deals with or is able to influence
1. to come/fall/be within sb's orbit
  进入 / 落入 / 属于某人的势力范围

verb

沿轨道运行；围绕…运动
to move in an orbit (= a curved path) around a much larger object, especially a planet, star, etc.
1. The earth takes a year to orbit the sun.
  地球绕太阳一周要一年的时间。

N-COUNT （天体等运行的）轨道
Anorbitis the curved path in space that is followed by an object going round and round a planet, moon, or star.
1. Mars and Earth have orbits which change with time...
  火星与地球的运行轨道随着时间而变化。
2. The planet is probably in orbit around a small star.
  这颗行星可能正环绕着一颗小恒星运行。
VERB 环绕…的轨道运行
If something such as a satelliteorbitsa planet, moon, or sun, it moves around it in a continuous, curving path.
1. In 1957 the Soviet Union launched the first satellite to orbit the earth.
  1957年，苏联发射了第一颗绕地卫星。
N-SING （影响所及的）范围，领域，圈子
Theorbitof a particular person, group, or institution is the area over which they have influence.
1. In the late 1970s Laos fell within the orbit of Vietnam and the Soviet Union.
  20世纪70年代末，老挝被纳入了越南和苏联的势力范围。

First, we know that the planets all orbit close to the earth's orbital plane, the ecliptic.
首先，我们知道所有行星的轨道都很靠近地球的轨道平面――黄道面。
China has also put astronauts into Earth orbit and conducted spacewalks.
中国还把航天员送到了地球轨道，并完成了空间行走。
They are in exactly the same orbit, but different satellites.
他们完全在，同一条轨道中，但是在不同的卫星中。
When the boosters have helped to lift a space station into orbit, they separate from it and return to the earth.
助推火箭把太空站推入轨道后，就自行脱落返回地球。
Ground controllers will then fire the booster, sending the satellite into its proper orbit.
然后地面控制人员将会发射推进器，把卫星送入正常轨道。
An autonomous satellite attitude and orbit determination system based on the stellar refraction measurement is described.
研究了基于星光折射量测进行自主确定卫星姿态及轨道的方法。
We have already worked out the conditions for a circular orbit.
我们已经算出了圆轨道的条件。
Yet bigger satellites will be sent up into orbit
更为大型的卫星将被送入轨道。
The orbit of this comet intersects the orbit of the Earth
这颗彗星的轨道与地球的轨道交叉。
The planet is probably in orbit around a small star.
这颗行星可能正环绕着一颗小恒星运行。