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[天][航]轨道周期
1、trial period───受审期，试用期
2、pay period───发工资期；[劳经]工资结算期
3、period───n.周期，期间；时期；一段时间；经期；课时；句点，句号；adj.某一时代的
4、cerium period───铈周期
5、orbital mechanics───[航][天]轨道力学
6、orbital───n.环形高速公路；adj.轨道的；绕城的；眼窝的
7、orbital bone───眶骨；[医]颧骨
8、orbital shaker───[医]定轨摇床，定轨振荡器
9、orbital shell───轨道壳
1、The Uranian moons are listed here by orbital period, from shortest to longest.───以下为天王星卫星列表，默认以轨道顺序排列。
2、We know the period, we know where apogee is, we know where perigee is, - we know the orbital period-- anything we want to know.───知道周期，知道远地点，和近地点在哪里，知道轨道周期-，知道了想知道的一切。
3、is the orbital period of the sandwich after the throw?───被扔的三明治的，轨道周期是多少？
4、If the stars were spiraling together the orbital period would shorten, as observed.───正如所观察的那样，两颗星一起盘旋时轨道周期将会变短。
5、As a result, Brown and his team will have to wait until fall to measure the expected shortening of the orbital period.───结果就是，布朗和他的研究团队只有等到今年秋天才能测量出它们的公转周期到底减少了多少。
6、know the period, we know where apogee is, we know where perigee is, - we know the orbital period — anything we want to know.───知道周期，知道远地点，和近地点在哪里，知道轨道周期-，知道了想知道的一切。
7、They would have a real doomsday clock the counted down each shrinkage of the binary's orbital period.───他们将真的会记录下双体的轨道周期每次缩短的时间，倒数着末日到来的日子。
8、They would have areal doomsday clock the counted down each shrinkage of the binary's orbital period.───她们将真的会记录下双体的轨道周期每次的缩短，倒数末了日到来的日子。
9、result, Brown and his team will have to wait until fall to measure the expected shortening of the orbital period.───结果就是，布朗和他的研究团队只有等到今年秋天才能测量出它们的公转周期到底减少了多少。
1、When the orbital period is plotted as a function of time it shows a steady decrease:.
2、The precision of measurement of the orbital period decay rivals the precision of this prediction.
3、Enke is unusual in that it is the active comet with the shortest known orbital period.
4、What is its sidereal orbital period around the Earth? 4.
5、And then his third law was that if you take the orbital period of an ellipse, that is proportional to the third power of the mean distance to the Sun.
6、Plugging those numbers into Kepler's Third Law — which relates a body's orbital period to its orbital distance — yields the density of the star and the planet.