One problem with the collision hypothesis is the question of how a satellite formed in this way could have settled into the nearly circular orbit that the Moon has today.
碰撞假说的一个问题是，以这种方式形成的卫星是如何在月球现在的近乎圆形的轨道上运行的。
You've got negative charge in motion, and it's in a circular orbit.
负电荷在运动，它们处在一个环形的轨道中。
Thee earth moves in an approximately circular orbit around the sun.
地球在一个近似正圆的轨道上绕着太阳运行。
That also means that the period t must be larger than the period in your circular orbit.
这也意味着，周期T比圆形，轨道的周期大。
As an example, say you have an item that you want to move in a circular orbit around the screen.
例如，假设想要有一个在屏幕中沿着圆形轨迹运动的项。
There might be a distant object in a more stable, more circular orbit that has gone unnoticed so far.
也许有这么一个遥远的天体具有一个更加稳定的更加圆润的轨道而至今未被我们发现。
And therefore, the total energy now is larger than the total energy that I had in my circular orbit.
因此，现在的，总能量比，在圆形轨道中要大。
Chaotic attitude motion of a magnetic rigid spacecraft in a circular orbit of the earth is treated.
研究在地球万有引力场和磁场中的磁性刚体航天器在圆轨道上的混沌姿态运动。
However, this algorithm does not apply for circular orbit cone-beam scan with line-focus X-ray source.
但是，这种算法不能满足线X射线源圆轨道锥束扫描的情况。
So this is our circular orbit X with radius r, and at location X, at 12:00, that is where I fire my rocket.
这是我们的圆形轨道,半径为r，在点，12点的位置,是我发射火箭的位置。
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit.
穿过深水的海浪使水面上的一个微粒按照一种近乎圆形的轨道移动。
I now go into an elliptical orbit because the new velocity is no longer the right velocity for a circular orbit.
我现在要进入一个椭圆形轨道，因为新的速度已经，不是圆形轨道中的速度。
The design method of the orthogonal circular orbit satellite constellation supporting global coverage is studied.
讨论了全球覆盖正交圆轨道星座设计方法。
As another example the center of mass of the earth and moon moves in an approximately circular orbit around the sun.
作为另一个例子，地球和月亮的质心就是在一个绕太阳的近似的圆轨道上运行。
So to go around this circular orbit will take the same amount of time as to go around this one, and that is by no means obvious.
沿着圆形轨道运行的，时间和沿着椭圆轨道，所花费的时间是一样的，这决非显而易见的。
An analytical method allowing exact reconstruction from cone-beam projection data which are detected from a single circular orbit is discussed.
本文介绍了一种可以对来自于单一圆轨道的锥束投影数据进行精确重建的分析方法。
On one hand, this result supports those researchers who are engaged in qualitative error sources analyses are liable to employ circular orbit assumptions;
这一结果支持了目前无线电掩星定性误差估计研究中通常引入卫星圆轨道假设这个近似处理方法的合理性；
During summer on the top half of Earth, our planet is actually farther from the sun than during winter, a fact owing to our non-circular orbit around the sun.
在地球的上半部分为夏季的时候，实际上这时的地球离开太阳的距离比在冬季还要远。所以会这样，是由于我们围绕太阳运行的轨道，并不是圆的。
An ocean wave passing through deep water causes a particle on the surface to move in a roughly circular orbit, drawing the particle first towards the advancing wave.
穿过深水的海浪使水面上的一个微粒按照一种近乎圆形的轨道移动，先把微粒拉向前移动的海浪。
An optimal trajectory generation strategy based on way-points is presented to solve the fixed-time state transition for spacecraft relative motion in a circular orbit.
针对圆(近圆)轨道航天器相对运动的固定时间状态转移问题，提出了一种基于导航点的多脉冲优化轨迹生成策略。
What happens to the precession rate if the orbit around a black hole is made nearly as small as possible, i. e. a slight elongation of the innermost stable circular orbit?
如果将围绕黑洞的轨道调至尽可能的小（即轻微拉长最内层的稳定圆形轨道），对岁差率有何改变？
Abstract: in order to reduce the cost of on-orbit service, the programming of on-orbit service mission for multiple object spacecraft in coplanar circular orbits was studied.
摘要为了降低“一对多”在轨服务的成本，以共面圆轨道卫星群为研究对象，开展了在轨服务任务规划问题的研究。
The optimal scheme is given for the dual-tangential transfer between two circular orbits by dual impulse method. The orbit perturbation as a result of the Earth's flattening is considered.
本文用两次冲量法给出了沿双共切椭圆轨道实现从一圆轨道向另一圆轨道转移的最优方案，并考虑到地球扁率造成的轨道摄动。
A lot of people think of earth's orbit around the sun as being perfectly circular, as smooth and as regular as, say, the way that hands move on a well-made watch, but it just doesn't work that way.
很多人认为地球绕太阳的轨道是完美的圆形，就像手在一块制作精良的手表上移动那样平滑、有规则，但事实并非如此。
The Moon's orbit is elliptical, meaning it does not follow a circular but rather an oval path.
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。
And it shifts its orbit from being roughly circular to more elliptical on a 100,000-year cycle.
并且它的变轨周期是10万年，从近似的圆变得更椭圆。
Like racing cars that swerve and hit each other on a circular track, the moons' speed relative to each other is low because they travel in nearly the same orbit.
这有点像是突然转向的赛车在环形赛道上相撞，月亮们也在同一轨道公转，所以他们之间的相对速度很小。
As you can see in Listing 5, making a view orbit around in a circular path is very easy if you utilize constraints.
如清单5所示，如果使用约束的话，产生一个沿着圆形轨迹移动的视图非常容易。
Traveling on a nearly circular, 229-day orbit around both host stars, the planet lies outside the system's habitable zone—the region where liquid water, and thus life as we know it, could exist.
它的运行轨道为近似的圆形，以229天为周期，围绕着两个恒星作轨道运行，这个行星位于这个系统的可居住区之外——所谓可居住区，那里有液体水，正像我们所知道的那样，那里可能会有生命的存在。
Traveling on a nearly circular, 229-day orbit around both host stars, the planet lies outside the system's habitable zone—the region where liquid water, and thus life as we know it, could exist.
它的运行轨道为近似的圆形，以229天为周期，围绕着两个恒星作轨道运行，这个行星位于这个系统的可居住区之外——所谓可居住区，那里有液体水，正像我们所知道的那样，那里可能会有生命的存在。
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