星體球 的英文怎麼說
中文拼音 [xīngtǐqiú]
星體球
英文
astro here-
You can fly in the earth ' s atmosphere in a normal air plane / astral body
你可以乘飛機或以星體軀體在地球的大氣層中飛翔。Perhaps the outer part of the moon was heated to the melting point by intense meteoric bombardment.
也許月球外層曾被流星體猛烈的撞擊而加熱到熔點。In going through the earth's atmosphere the light from an extraterrestrial bodies suffers considerable absorption.
從地球以外的所有星體射來的光,在通過地球大氣時,都會遭受很大的吸收。Many planets ( for example, ganymede, mercury, the earth, jupiter and saturn ) and stars ( for example, the sun ) possess intrinsic magnetic fields. the explanation for their existence and variation remains a great challenge to planetary scientists and astrophysicists. this article attempts to review some recent developments and difficulties in the study of magnetohydrodynamics for the electrically conducting fluid interiors of planets and stars. it is the fluid motions, usually driven by thermal convection, that generate and sustain magnetic fields through magnetohydrodynamic processes in planets and stars. in planets, the magnetohydrodynamic processes are strongly affected by the combined and inseparable effects of rotation, magnetic fields and spherical geometry. the key dynamics involves the interaction between the coriolis and lorentz forces. in the sun, it is the solar tachocline, a thin shear flow layer located at the base of the convection envelope, that plays an essential role in the solar magnetohydrodynamic processes which produce the 11 - year sunspot cycle. some results of a new nonlinear three - dimensional solar dynamo model are also presented
許多行星(如木衛三,水星,地球,木星和土星)和恆星(如太陽)具有內部磁場.對這些磁場的存在和變化的解釋對行星科學家和天體物理學家是一個巨大的挑戰.本文試圖總結行星和恆星的導電流體內部磁流體力學研究的新近發展和困難.一般由熱對流驅動的流動通過磁流體力學過程產生並維持在行星和恆星中的磁場.在行星中磁流體力學過程強烈地受到轉動,磁場和球幾何位型的綜合影響.其動力學的關鍵方面涉及科里奧利力和洛倫茲力間的相互作用.在太陽中其流線,即處于對流層的薄的剪切流層在太陽的磁流體力學過程中扮演了一個基本的角色,並由之產生了11年的太陽黑子周期.本文也給出了一個新的非線性三維太陽發電機模型During accretion, the kinetic energy of the colliding planetesimals was converted into thermal energy, so the earth grew extremely hot as it came together
在增生階段,小行星體的碰撞動能轉化成了熱能,因此當它聚集到一塊時地球變得非常熱。Topics include : planets, planet formation ; stars, the sun, " normal " stars, star formation ; stellar evolution, supernovae, compact objects ( white dwarfs, neutron stars, and black holes ), plusars, binary x - ray sources ; star clusters, globular and open clusters ; interstellar medium, gas, dust, magnetic fields, cosmic rays ; distance ladder ; galaxies, normal and active galaxies, jets ; gravitational lensing ; large scaling structure ; newtonian cosmology, dynamical expansion and thermal history of the universe ; cosmic microwave background radiation ; big - bang nucleosynthesis
課程的主題包含了:行星、行星形成;恆星、太陽、正常的恆星、恆星形成;恆星演化、超新星、緻密天體(白矮星、中子星及黑洞) 、波霎、雙x -射線源;星團、球狀及疏散星團;星際介質、氣體、塵埃、磁場、宇宙射線;距離階梯;星系、正常及活躍星系、噴流;重力透鏡;大尺度結構;牛頓宇宙學、宇宙的動力膨脹及溫度發展歷史;宇宙背景微波輻射;大霹靂核合成。Modern astronomers, gazing at stars and galaxies far away from the earth, can reconstruct what occurred only minutes after the creation of the universe, billions of years ago.
現代天文學家凝望著遠離地球的星體,星系,從而領悟出數十億年之前宇宙誕生后的短短幾分鐘內發生了哪些現象。A celestial event is oftentimes the precursor to the fulfillment of a prophecy from god about great change on the planet and for humanity in general
天上的事件時常是履行神的預言的先驅,通常是關于這顆行星(地球)和人類總體上的偉大轉變。Some asteroids, despite their small size, possess satellites of their own. a handful of others suffer serious perturbations by major planets and travel in highly eccentric orbits, which can send them well beyond the orbit of jupiter. the so - called near - earth asteroids cross the earth s orbit and make occasional close calls to our home planet
有些小行星體積雖小,但竟然擁有衛星而有些小行星,由於受到其他大行星的強烈攝動,軌道為極狹長的橢圓,遠日點甚至延伸至木星的軌道以外近地小行星則會越過地球的軌道,不時在我們的庭園掠過,偷窺地球的一切,若有天真的登門造訪旄轟!Without any foreign assistance, china has independently developed intermediate and short - range missiles, long - range rockets, submarine - launched solid - propellant rockets, recoverable satellites, the technology to launch multiple satellites atop a single rocket, and geostationary communication satellites
中國的中近程導彈、遠程火箭、潛艇水下發射固體燃料火箭、返回式衛星、一箭多星、地球靜止軌道通信衛星都是在沒有任何外國幫助下獨自完成的。This at least accounts for the fact that a particular group of meteoroids shares with its parent comet more or less the same orbit, which can remain relatively unchanged over eons. an immediate consequence is that our earth makes periodic rendezvous with this meteoroid swarm, thereby culminating in a regular display of these celestial fireworks. to name a few, we have the lyrids in april and the geminids in december
流星雨的成因是地球遇上了一群密集的流星體,一般相信,流星群是由周期性彗星分解出來的物質或由瓦解了的彗核所形成,所以流星群和其母體彗星有大致相同的軌道,由於流星群的軌道頗為固定,所以地球會周期性地穿越這些流星群,形成固定出現的流星雨,例如四月天琴座流星雨十二月雙子座流星雨等。A polar projection of half or more of the celestial sphere on a chart equipped with an adjustable overlay to show the stars visible at a particular time and place
星座一覽圖天體球的一半或多半在平面圖上的極投影圖,這種圖具有可調節的遮蔽物以顯示在給定時刻和位置可見的恆星If the magnetic stripes on mars are confirmed to be caused by plate tectonics, this would be the first direct evidence of the existence on another world other than earth of such geological process. source : nasa
注一:流體靜力學平衡hydrostatic equilibrium是指星體有足夠的萬有引力去令星體的物質固為球體或接近球體,而不至於物質向內崩塌或飛散。Directed by hironobu sakaguchi who also created the best - selling series of video games that inspired the film, the groundbreaking final fantasy, whi.
2065年,流星體撞向地球,引發數以千萬計的異種降落地球大肆破壞,人類死傷無數,生還者只好暫避在防衛城保命。When a meteoroid with a speed of tens of kilometers per second hits the earth s atmosphere, the friction with air will heat up the meteoroid. the high temperature will cause the surrounding atmosphere to glow, creating a bright streak of light called a
當流星體以每秒數十公里的速度進入地球大氣層,由於與空氣摩擦而產生高熱,高溫令流星體四周空氣發光,形成一條劃破天際的光跡,我們稱之為If the angle p is one arc second, then we define the distance d to be one
當偏移的角度為一角秒,星體與地球的距離即為天文學上所定義的一Dr marcy suspects that his new discovery, which has about 45 times the mass of the earth, is composed of a rocky core surrounded by a thick envelope of hydrogen and helium gas
馬西博士懷疑,他的這個擁有地球質量四十五倍的新發現星體有一個巖層核心構成,並被一層很厚實的氫氣與氦氣層籠罩。If you watch over the period of a day you will see that they move around the celestial sphere once in a period of 24 hours
如果你對著屏保看一天,上面的星體也將在24小時內圍繞天球旋轉一圈。If you just read the official definition, then even jupiter and earth are not planets because there are asteroids around their orbits and hence they do not clear the orbits. similarly, neptune is not a planet because pluto crosses the orbit of neptune
從表面看來,即使木星地球也不是行星,因為在它們的軌道內亦有不少小行星,它們並未能清空軌道附近的其他天體,同一道理,由於冥王星會橫過海王星的軌道,所以海王星理應亦不附合作為行星的條件!Firstly, the mechanism of the preparation of superfine quartz powder with ball mill is studied in this article, based on nature of quartz material, griffith ' s strength theory and the crush theory of planetary ball mill. the problem of granulation during the process of the preparation of superfine quartz powder is studied minutely. and proposed increasing dispersant and disperser medium to restrain granulation, and dispersing use ultrasonic after milled
首先,本文結合石英材料的基本物性,以格里菲斯強度理論和行星式球磨機的粉碎原理為基礎,研究了球磨法制備超細石英粉體的機理,同時對粉石英制備過程中的團聚問題及其控製作了細致的研究,提出粉磨過程中增加分散劑和分散介質來抑制團聚,粉磨后採用超聲法進行分散,並確定了最佳分散劑、分散介質的用量和最佳超聲分散時間。分享友人