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.
我回想起在晚上11点钟的时候，我正朝北方眺望北斗星，没有朝南面她家的方向看。
I think that at 11 p.m. I was looking north at the Big Dipper, not south toward her house.
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.
在上个月这颗亮星经历一次大规模光学爆发的时候，我们在它所在的方向上发现了一次伽马射线爆发。
Last month, we discovered a bright gamma-ray flare from the direction of this star while it was undergoing a huge optical outburst.
在耗费了大约数百万年的时间后，这种混合物终于向着泰坦星中心的方向稳定了下来，“热量散发和冷却星体都用了很长的时间，最终才达到了目前的稳定状态，”Iess说。
This mixture took a leisurely million years or so to settle toward Titan's center—"plenty of time for heat to escape" and for the moon to cool into its present state, Iess said.
其中有一个真正的逃亡者，我帮他朝北极星的那个方向逃去。
One real runaway slave, among the rest, whom I helped to forward toward the north star.
我欣喜地发现了北极星，并顺着它的方向找到了像勺子形状一样的北斗七星。
I was glad to find the North Star, which pointed out for me the Big Dipper.
而在长廊的东南方向，有八块巨大的青石，称为七星石，都是风水镇石。
And in the southeast direction, long corridor there were eight huge stone, stone, are called seven feng shui town stone.
方位角观察者通过测量所具有的水平角度，从某一参考方向顺时针测量，如从北部或从参考天体处，通常从北极星。
The horizontal Angle of the observer's bearing in surveying, measured clockwise from a referent direction, as from the north, or from a referent celestial body, usually Polaris.
每天夜里，骆驼向北斗星的方向慢慢地行走。
我们可以用北极星辨认方向。
天线方向图在轨测量是星载sar定标技术的关键部分。
Inflight measurement of antenna pattern is a key technology of spaceborne SAR calibration.
齐塔人之声2011.6.11分析：由于滤光片减少了炫光，这些照片不仅显示了在4点钟方向的X星本体，还有各种各样的卫星漩涡圆盘集结在太阳周围。
ZetaTalkAnalysis6/11/2011: With reduced glare due to filters, these photos are showing not only Planet X itself at the 4 o'clock position but various Moon Swirl orbs clustered around the Sun.
其原因是他决定以北极星的方向来确定地图的方向，因为北极星是固定不动的航灯，那时的航海者依赖它进行航行。
The reason for this was that he decided to orientate the map in the direction of the Vole Star since Polaris was the immovable guiding light in which the voyagers of that era placed their trust.
对利用多个编码发射机在轨测量星载SAR接收天线二维方向图的技术进行了研究。
This paper describes a new method of antenna reception pattern measurement for spaceborne SAR using encoding transmitters.
晚上面对北斗七星时，后面是，右面是，左面是。提示：里面填方向。
Evening faces Big Dipper time, is, the right side is at back, left is . Hint: Fill direction inside.
当你迷路时北斗七星可以给你一点方向感。
The Big Dipper can give you a sense of direction when you are lost.
天线外定标是实现星载SAR天线方向图在轨测试的主要手段。
External calibration is key method used for spaceborne SAR antenna onboard measurement.
天线外定标是实现星载SAR天线方向图在轨测试的主要手段。
External calibration is key method used for spaceborne SAR antenna onboard measurement.
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