earth-moon system 中文意思是什麼
earth-moon system
解釋
地球-月球體系-
In the stage of the sun and the moon in sight, azimuth of the sun, the earth and the moon in the spacecraft body coordinate system is simulated. combining the simulated azimuth with the ephemeris of the sun and the moon, the state equation and observation equation are modeled. the initial orbital parameters calculated by least square method are used in orbit state equation to predict spacecraft state and to realize autonomous navigation
在日月可見階段，模擬日、地、月敏感器測量信息，即日、地、月在航天器本體坐標系下的方位信息，結合日月星歷，建立狀態方程及觀測方程，通過最小二乘法得到歷元時刻的軌道狀態初始值，將其代入軌道狀態方程進行自主導航。 -
The moon was formed elsewhere in the solar system and was later captured by the earth's gravitational field.
月球在太陽系別的地方形成，然後被地球的引力場俘獲。 -
The many impact craters that have pocked our moon and earth reveal our solar system can be like a shooting gallery, with asteroids and comets regularly striking planets and their companions
我們的月亮和地球上密密麻麻的碰撞環形山可能和射擊場相似，小行星和彗星經常碰撞行星及其伴星。 -
Solar system ' s main member includes : sun ( star ), nine planets ( including earth ), innumerable planetoids, multitudinous satellite ( including moon ), but also has the comet, the meteor as well as the massive dust matter and the thin gaseous state matter
太陽系的主要成員有：太陽（恆星） 、九大行星（包括地球） 、無數小行星、眾多衛星（包括月亮） ，還有彗星、流星以及大量塵埃物質和稀薄的氣態物質。 -
It is possible, for example, that a very large body in the asteroid belt broke apart about 3. 9 billion years ago and that the debris was swept toward the earth - moon system
舉例來說， 39億年前可能有一個非常大的天體由小行星帶中分出，其遺屑向地月系統橫掃而來。 -
Two years later, in january 2006, stardust returned these dust grains ? the first sample return from a solid solar - system body beyond the moon ? to earth
兩年後的2006年1月，星塵號帶回這些塵埃顆粒? ?首批帶回的來自月-地系統之外的太陽系自身樣品。 -
The most likely place to find extant life, other than earth, in our solar system may be jupiter s ice moon europa
至於在太陽系中地球以外最可能有生物尚存的地方，莫過于木星的衛星木衛二。 -
Tidal energy exploits the natural rise and fall of coastal waters caused mainly by the interaction of the gravitational fields of the earth - moon - sun system
潮汐能源工程利用了海水的自然潮起潮落過程，這種現象主要是由於地球- -
Taking account of the perturbation of the earth ’ s shape, the gravitation of the sun and the moon, the radiation pressure from the sun light and atmosphere drag, a precise orbital dynamic model of spacecraft is established in the equatorial geocentric inertial coordinate system ( j2000 )
考慮了地球形狀攝動、日-月引力攝動、太陽輻射壓力和大氣阻力因素對飛行器的影響，在地心赤道慣性坐標系下建立了精確的軌道動力學模型。 -
Selecting the image elements of earth and moon centers as observed quantity, measurement noise model and observed equations of autonomous navigation system are built up. the spacecraft orbit is determined by using the recursive weighted least square based on ud factorization
在奔選取地心和月心像素作為觀測量，建立了符合實際情況的量測噪聲模型和自主導航系統的觀測方程，並利用基於ud分解的遞推加權最小二乘演算法估計了奔月探測器的軌道參數。 -
The lsp system consists of 20 - 40 lunar power bases, situated on the eastern and western edges of the moon, as seen from earth
月球太陽能發電系統由20 - 40個月球太陽能基地組成，從地球上看，它們位於月球的東西部邊緣區域。 -
A hint of the fascinating discoveries awaiting global reconnaissance came from two flybys of the earth - moon system in the early 1990s by the jupiter - bound galileo spacecraft
1990年代初期，前往木星的伽利略太空船兩度飛過地月系統，預先暗示了各種驚人現象，有待未來全球性偵察的發掘。
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