黑暗双星显示于地球的对面，这不仅可以从它在太阳对面看出来，还有它和地球都采用的逆时针轨道方向。
The Dark Twin is shown opposite the Earth, identified not only by being on the opposite side of the Sun but by the counterclockwise orbit direction that they both assume.
该行星轨道的方向不断变化。
The orientation of the planet's orbit is changing continuously.
圆盘产生自己的引力拖曳，这种相互作用的力夺走了行 星在其轨道上的动量，迫使它盘旋向恒星的方向。
The disk exerts its own gravitational tug, and this interplay of forces robs the planet of momentum in its orbital path, forcing it to spiral in toward the star.
在太阳引力的控制下，每个行星都维持在一条椭圆形的轨道上，并按照相同的方向移动。
Under the control of the Sun's gravitational force, each planet maintains an elliptical orbit and all of them travel in the same direction.
这些轨道唯一的不同之处,是在空间的方向不同。
The only thing that is different about these orbitals is their orientation in space.
马泰赛和惠特迈尔分析了来自奥尔特星云的彗星轨道后，发现其中20%的彗星不是像你以为的来自于随机方向，而是来自于天空的某个狭窄区域。
When Matese and Whitmire analyzed the orbits of these Oort Cloud comets, about 20% of them seemed to come not from the random directions you'd expect, but from a narrower section of sky.
在我崎岖的生命旅途中，我很幸运的拥有许多为我指引正确方向的良师益友，时不时的把我拉回正确的轨道，为我的成功而喝彩。
Along the curves and bumps in my life journey, I have been fortunate to have mentors to steer me in the right direction, to get me back on track and to cheer me on at the finish line.
他们提出，在这颗行星的轨道上，它会定期地进入奥特云，扰乱那里很多彗星的轨道，并且使得其中一些彗星掉落到去往地球的方向上。
They suggest that during its orbit it would regularly enter the Oort cloud, jostling the orbits of many comets there and causing some to fall toward Earth.
在灶神星轨道呆了一年之后的“黎明”号将在太空旅行中进行一次罕见的表演- - -它会重新点燃发动机并转变方向环绕另一个天体运行。
After spending a year in orbit around Vesta, Dawn will perform a trick rare in space travel-it will reignite its engines and head off to orbit another body.
亚特兰蒂斯号沿着向东北方向的轨迹，加速飞入多云的天空，沿着预订轨道在星期三下午与国际空间站对接。
Wheeling about to line up on a northeasterly trajectory, Atlantis accelerated through a partly cloudy sky, on course for a docking with the space station around noon Wednesday.
NDTV网络播出的镜头显示，大约新德里东南方向170公里，在轨道和警察搬运用被单覆盖的尸体的地方有一些瓦砾。
The NDTV network broadcast footage from the scene, about 170km southeast of New Delhi, showing debris strewn across the tracks and police officers carrying bodies covered with sheets on stretchers.
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。
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.
“福布斯-格朗特”号11月9日发射后由于引擎故障一直被困在地球轨道上，无法朝着火星的方向继续飞行。
Phobos-Grunt has been stuck in Earth orbit since its launch on 9 November, unable to fire the engine that would take it on to Mars.
东亚思想库网络正式英文缩写是“NEAT”,应明确定位为东亚合作进程的“第二轨道”，主要为推动东亚合作提供智力支撑，对东亚合作政策性和方向性的重大问题提出建议。
The English abbreviation for Network of East Asian Think-tanks is the NEAT.
方向就是轨道的切线方向。
在这样的情况下，旋转小行星的运行轨道将非常缓慢地向朝着太阳的方向盘旋。
In this case, the orbit of the rotating asteroid will very slowly spiral in toward the sun.
当项目偏离正确轨道，一般不是因为某一个团队的功能紊乱，往往是由于整个组织的方向偏离。
When projects go astray, it is typically not because any one team is dysfunctional, but because the entire organization is misaligned.
轨道正沿着西北方向，几乎和明暗分界线平行，这使得看到一个明显的正北方向的日出成为了可能。
The orbital complex was tracking northeastward, nearly parallel to the terminator, making it possible to observe an apparent "sunrise" located almost due north.
证明那个是巧合的时候却发现不是这样的，在六个月后重复了这个实验，此时地球正在轨道的另一边以相反的方向运行。
To check that this was not so, the experiment was repeat six months later when the Earth was travelling in the reverse direction on the opposite side of its orbit.
我们也可以看到它们从这个方向靠拢，现在你看的方向你可以看到p轨道，也许可以看到一个氢原子。
So we can also show them coming together this way, so now you're looking at it where you can see the p orbital, and maybe just see well one of the hydrogen atoms.
未来的研究将确定细胞命运的决定因素，观察其分布的相对主轴的方向和轨道随后兄弟细胞的命运。
Future studies will have to identify cell fate determinants, observe their distribution relative to spindle orientation and track the subsequent sibling cell fates.
所以它是沿着键轴方向的,而且这里是一个碳sp2杂化轨道，和一个氢的1s轨道的结合,在这里我们可以合并他们。
So it's along the bond axis and it's between a carbon s p 2 hybrid, and then the hydrogen is just a 1 s orbital that we're combining here.
这里，△r应该是近似等于。。。,它的方向是轨道的切线方向。
And now, delta r should be essentially roughly equal to, well, its direction will be tangent to the trajectory.
但记住sigma轨道沿着，键轴方向是没有节点的。
But keep in mind sigma orbitals have no nodal planes along the bond axis.
12点方向，三明治移动。，LEWIN：，12：00，，there，goes，the，sandwich。,现在Peter决定在一个点,而不是把三明治向后扔，他也可以向前仍，因为，看，公色的椭圆轨道。
LEWIN Now, Peter decides at one point that instead of throwing the sandwich backwards, he can also throw the sandwich forward, because, look, we have here the red ellipse.
和这个计划不同，更多研究者的努力方向是使用轨道高度22300英里的地球同步卫星，它们和地球的位置相对固定，可以不间断地传送能源。
Moststudies have focused instead on geostationary satellites, those whoseorbit 22, 300 miles above the Earth keeps them over a single location, to which they would transmit a continuous flow of power.
它每一次访问太阳系时，都从轨道上甩出上百万个岩块，其中一些飞向地球的方向--有几次几乎摧毁地球上的生命。
Of the millions of rocks it throws out of orbit at each visit, some hurtle Earthwards--and have several times nearly wiped out life on Earth.
值得注意的是，具有轨道角动量的光，偏振方向(用箭头方向表示)在截面内部发生变化。
Note that in light with orbital angular momentum, the direction of polarization (denoted by the direction of the arrow) does not change across the cross section.
值得注意的是，具有轨道角动量的光，偏振方向(用箭头方向表示)在截面内部发生变化。
Note that in light with orbital angular momentum, the direction of polarization (denoted by the direction of the arrow) does not change across the cross section.
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