月球學 的英文怎麼說
中文拼音 [yuèqiúxué]
月球學
英文
selenodesy-
In the southern hemisphere of the moon ' s far side, mission scientists saw an unusual signature of high - iron rocks in the floor of the south pole ? aitken ( spa ) basin, the largest basin on the moon
科學家在月球遠地面南半球的南極?艾肯盆地(簡稱spa盆地,是月球上最大的盆地)底部,發現高鐵巖石的異常蹤跡。As the nearest celestial body to our earth, the moon has, of course, always been a favored object for the amateur astronomer.
月球是最接近地球的天體,當然總是業余天文學家喜愛的對象。This paper studies the perturbation action of celestial bodies ' movement on the earth from the view of celestial mechanics, and furthermore analyzes the effect of celestial bodies ' movement on the natural slope stability due to phosphorus ore mining in mountainous areas
摘要針對宜昌磷礦高陡山區地下開采對上部山體穩定性影響,從天體力學的角度探討天體運動對地球的攝動作用,並分析月球運動的引力對山區磷礦自然坡失穩的影響。Many scientists believe that lunar craters were formed by the collision of meteors and comets against the moon.
許多科學家相信,月球坑穴是流星和彗星碰撞月球所造成的。Scientists at nasa ' s jet propul - sion laboratory in pasadena, california, collected the data using the facility ' s goldstone solar system radar
該數據是利用美國國家航空航天局噴氣推進實驗室的金石太陽系雷達收集的,月球南極的地形比科學家們之前預想的要更加崎嶇不平。Based on the kinematics analysis of lunar rover, we build the whole vehicle model
在對月球車的動力學分析的基礎上建立了整車的車輛模型。With time running out, a team of scientists turn to one man, demolitions expert john redding, in effort to find a solution and secure the moon
隨著時間的流逝,一組科學家只剩下爆破專家約翰雷丁一人,他在努力尋找解決辦法,並拯救月球。Because the steering angles of front wheel and rear wheel couple with the directional angles, a kinematics approach is developed to compute these two steering angles
由於月球車前後輪的舵角與車體轉向角存在耦合,本文設計了一種運動學計算方法來得到前後輪的舵角。The unscented kalman filter is used to estimate the probe position, velocity and un - model acceleration, which improves the orbit estimation accuracy and ensures the stability of navigation algorithm
數學模擬結果表明,提出的導航方法是可行的,能夠滿足月球探測器奔月與繞月軌道段導航精度的要求。Scientists are trying to map the surface of the moon
科學家們正設法繪制月球表面圖。Shanghai space scientists over the moon at uk china virtual space laboratory
上海空間科學家將在中英空間實驗室打造滬版「月球車」Based on the thought of variable - complexity modeling in multidisciplinary design optimization, a two level variable - complexity model is established with the background of moon exploring satellite
本文依據多學科設計優化中可變復雜度建模的思想,以月球探測衛星為背景型號建立了衛星的兩級可變復雜度模型。Some 35 years on, reflectors placed on the lunar surface are still used by scientists interested in geophysics and geodesy ( for example, how the moon ' s gravitational field shifts over time )
35年來,放置在月球表面的反射鏡依然在使用,一些對地球物理學和測地學感興趣的科學家用它們來研究月球的引力場如何隨時間變化。Though it is popular to speak of the moon as a dead world, an orbiting cinder, scientists are not so sure.
雖然人們通常都說月球是一個死的世界,一團環繞軌道運動的溶滓,科學家可不那麼斷定。Dynamics mathematic model for the mobile robot is built based on the analysis of the mechanism of a six - wheeled rocker lunar rover
首先,針對六輪獨立驅動搖臂式月球車的機械結構,建立其動力學的數學模型。British embassy beijing - press office - news - shanghai space scientists over the moon at uk china virtual space laboratory
英國駐北京大使館-新聞處-新聞稿件-上海空間科學家將在中英空間實驗室打造滬版「月球車」The chinese scientists will for the first time have three - dimensional pictures taken for the whole lunar surface, explore into the amount and distribution of 14 elements on lunar surface and probe into the thickness of the whole lunar earth
中國科學家將第一次進行全月面三維立體照相,探測月球表面14種元素的含量和分佈,以及全月球表面的土壤厚度。Based on the confirmation of driving force of lunar rover, we analyze the relationship between adhesion coefficient of road surface and wheel slip. in our research, several types of wheel force model are referenced among them, and we select the polynomial model with exponential function as the wheel force model of the lunar rover
圍繞月球車驅動力的確定,本文分析了路面附著系數與滑轉率的關系,以車輛動力學分析中常用的幾種車輪力模型為基礎,選擇了帶有指數函數的多項式模型作為分析月球車車輪附著力的模型。On the base of kinematics analysis and the relationship of adhesion coefficient of road surface and wheel slip. this paper give a simulation to a single wheel, to show the kinematics characteristics of the wheel in case of fixed torque and fixed wheel slip, and get a conclusion that wheel slip has great influence on kinematics characteristics of lunar rover
在動力學模型的基礎上,根據滑轉率和附著系數的關系,本文對月球車進行了動力學模擬,展示固定轉矩和固定滑轉率兩種情況下的動力學特點,得出了滑轉率影響到車輛驅動性能的結論。But after conducting a radar survey of craters constantly in shadow at the lunar poles, bruce campbell of the smithsonian institutionin washington dc and his colleagues said they did not uncover any evidence of thick ice deposits
美國華盛頓特區史密森學會的布魯斯?坎貝爾和他的同事對月球兩極地區陰影凹地進行的經常性雷達掃描結果表明,並沒有任何大量冰層沉積的跡象。分享友人