特大質量星 的英文怎麼說

中文拼音 [tèdàzhíliángxīng]
特大質量星 英文
supermassive star
  • 特 : Ⅰ形容詞（特殊; 超出一般） particular; special; exceptional; unusual Ⅱ副詞1 （特別） especially; v...
  • 質 : Ⅰ名詞1 （性質; 本質） nature; character; essence 2 （質量） quality 3 （物質） matter; substance;...
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 星 : 名詞1 （夜晚天空中閃爍發光的天體） star 2 [天文學] （宇宙間能發射光或反射光的天體） heavenly body...
  • 特大 : especially [exceptionally] big; the most
  • 質量 : 1 [物理學] mass 2 （產品或工作的優劣程度） quality 3 economy （離子源的）; 質量標準 quality level...
  1. On the bases of the galaxy evolution theory, we use the therotical chemical evolution model of three zone ( such as halo, thick disk and thin isk ) and multi - phase ( diffuse gas, molecular clouds, stars of both low and high mass, the remnants ). by comparing with the observational constraints, such assurface densities, age - metallicity relation, g - dwarf metallicity distribution in the solar neighbourhood and the correlation between [ a / fe ] and [ fe / h ], supernovae rates, infall rates. the rationality of the model is verified. based on the theory model, we calculate the abundance of neutron capture element

    本文正是在銀河系化學演化的基礎上，利用銀河系的三成分（ threezone ） （即暈、厚盤和薄盤）多相（ multi - phase ） （氣體，分子云，大、小質量恆星以及剩餘物質）的化學演化的理論模型，通過與觀測約束（質量面密度、場星的年齡-金屬豐度關系、太陽附近g矮星金屬含量分佈函數、三成份的特徵量、元素的星系化學演化、超新星的爆炸率、內落速率等）的比較，來檢驗模型的合理性。
  2. Application of microsatellite dna polymorphisms and dna fingerprints to inbred strain mice and rats to screen the exact, dependable, particular genetic monitoring marker method of laboratory animal, the author had studied the application of microsatellite dna polymorphisms and dna fingerprints to inbred strain mice and rats, and compared the two methods with the biochemical marker enzyme method. the study had established the foundation of the molecular genetic monitoring marker method of laboratory animal

    本文通過對dna指紋技術和pcr擴增微衛星dna技術在近交系大、小鼠遺傳檢測中的應用研究，並與生化位點標記分析法進行比較，旨在篩選出具有精確、可靠、特異性好的實驗動物遺傳檢測方法，為建立分子生物學實驗動物遺傳質量監測技術和標準奠定基礎。
  3. In 1909, ernest rutherford showed that atoms were mostly empty space, revising the model of an atom to a tight positive nucleus containing the protons and neutrons with electrons around it ; by 1913, danish physicist neils bohr envisioned a planetary arrangement in which the electrons orbited the nucleus at different energy levels

    在1909年，歐內斯特?盧瑟福展示原子大部分是真空區，修正的原子模型就是緊密的陽性核包含質子和中子，電子圍繞中子旋轉；到1913年，丹麥物理學家尼爾?波爾想象了一個電子以不同能量水平面圍繞原子核旋轉的行星排列。
  4. Our results show that, during the evolution of a binary system, the system widens as it loses mass, and the orbital period increase, while orbital eccentricity remains nearly constant, which can explain the distribution regulation of orbital elements of normal g - k giant and barium stars and the distribution character of the heavy - element abundances of barium stars

    計算結果表明，隨著星風吸積過程的進行，在星風質量損失階段系統軌道半長軸將增大，導致軌道周期增大，而偏心率變化不大，由此可以解釋普通紅巨星雙星系統和鋇星系統的軌道根數的分佈規律和變化情況以及鋇星重元素豐度分佈特徵。
  5. Van den bosch is particularly intrigued by the formation of disk galaxies and of massive black holes in galactic centers

    范登柏希特別著迷於盤形星系與星系中心超大質量黑洞的形成過程。
  6. The satellite - telecommunication has a serial of characteristic such as long distance, large coverage area, wide communication band, big transmission capacity, high quality, it has made a rapid progress in the last decades and become one of the most powerful communication methods today

    而衛星通信具有通信距離遠、費用與通信距離無關、覆蓋面積大、不受地理條件限制、通信頻帶寬、傳輸容量大、適于多種業務傳輸、可進行多址通信、通信質量高等一系列特點，幾十年來獲得了迅速的發展，成為現代強有力的通信手段之一。
  7. One group, led by john matese, professor of physics at the university of louisiana at lafayette, confirms the notion that it is most likely to be a brown dwarf, a star that never accumulated enough mass to ignite and which has simply sat in space smouldering for billions of years

    一個由拉斐特的路易斯安娜大學物理學教授約翰?馬泰塞領導的小組證實了一個想法，那就是它最有可能是一顆褐矮星，這是一種永遠也不能積聚足夠的質量著火燃燒的星，它只是在太空中數十億年地無焰悶燒。
  8. One of the most popular hypothesis is the supermassive black hole theory. when materials surrounding the black hole fall into it, large amount of energy is released. galaxy collision may create the supermassive black hole at the center

    最流行的理論是星系中心有一個特大質量黑洞，當星系物質流進黑洞的時候，就會產生出大量的能量，而中心內的黑洞可能便是星系碰撞時形成的。
  9. By studying the inner regions of nine elliptical galaxies with chandra, scientists can now estimate the rate at which gas is falling toward the galaxies ' supermassive black holes

    科學家使用錢德拉研究了9個橢圓星系的內區，估計出了星系中心特大質量黑洞的氣體下落速率。
  10. Thus, we conclude that they radiate enormous amount of energy, even larger than those active galaxies nearby. quasar is probably also the supermassive black hole at the center of a young galaxy

    我們可以肯定它們所發出的能量非常驚人，甚至比附近的活動星系更厲害，它們可能是中心有特大質量黑洞的年青星系。
  11. The number density distribution of globular cluster in space will change with time due to the dynamic evolution, especially for those in the central region of the galaxy ; 5. for the power law initial cluster mass function, the peak value of the mass function after the dynamic evolution is sensitive to the lower limit of the initial mass function we adopt. the suggested value in this paper is - 104m, which is consistent with that reduced from the dynamical analyses for the giant molecular clouds

    對于冪率的初始質量譜，球狀星團系統動力學演化后質量分佈的轉折點質量主要是由初始質量函數的質量下限決定的，最為適合的值為10 ~ 4m _ ；冪率的初始質量譜的譜指數對球狀星團系統動力學演化后質量分佈的轉折點質量也有影響，其最佳值為1 . 5 2 . 0 ；經過大約5gyr的動力學演化，冪率的初始質量譜就會演化成為高斯的對數質量分佈並具有在隨后的動力學演化中保持對數高斯形式質量分佈的特性。
  12. The emerging consensus is that the early universe was dominated by a small number of giant galaxies containing colossal black holes and prodigious bursts of star formation, whereas the present universe has a more dispersed nature ? the creation of stars and the accretion of material into black holes are now occurring in a large number of medium - size and small galaxies

    目前逐漸形成的共識是，早期宇宙是由數量稀少、但含有巨大黑洞，且恆星形成率超高的巨型星系所主宰，今日的宇宙則具有較零散的特性恆星的誕生與黑洞吸積物質的作用，發生在龐大數量的中、小型星系內。
  13. The winds from wolf - rayet stars and the shockwaves from supernovae ( which, before explosions blew them apart, were also recently formed, massive stars of the sort found in starbursts ) create huge holes known as superbubbles in the gas of a starburst region

    源於"伍爾夫-雷耶特"星體而向外吹刮的星雲風暴以及來自超新星的沖擊波（這些超新星也是剛剛形成，質量巨大，可從星群爆發中找到，但很快就會被分解）能夠在星群爆發地區形成巨大的黑洞，稱為超級氣旋。
  14. Studies show that, in a binary system, huge energy is released when matter of companion star fall onto the surface of neutron star. on the contrary, when matter falls into black hole, it together with the energy generated will disappear behind the event horizon. for that reason, x rays emitted by neutron star binaries are stronger and their spectra exhibit special characteristics

    研究發現，在雙星系統中，伴星的物質掉落中子星的表面時會釋放巨大能量，而物質掉落黑洞時，則會與它所擁有能量一同消失於視界之中因此含有中子星的雙星系統所發出的x射線強度總是較高，而光譜也有不同的特徵。
  15. Star sensor is a high accuracy instrument for attitude determination. the new generation of autonomous star sensor is characteristic with wider fov and higher accuracy as well as size, mass and power decreasing

    星敏感器是一種高精度的姿態測量儀器，具有自主導航能力的新一代星敏感器的顯著特點是視場大，精度高，體積、質量、功耗不斷減小。
  16. Secondly, for satellite controlled by reaction wheels, an algorithm or strategy is presented. and then reaction wheels are used to generate a known disturbance torque, using thrusters as controller and gyro as the attitude sensor, a thruster parameters calibration for thruster levels and alignments on - line is achieved

    其次，針對反作用飛輪控制的衛星，提出了一種衛星質量特性在線辨識策略和辨識演算法，並利用反作用飛輪產生擾動力矩，推力器作為控制執行機構，使用陀螺測量衛星姿態角速度，實現推力器推力大小和方向等參數的在線辨識。
  17. The attitude control system design and its control effect are affected greatly by mass - property parameters of satellite, which can change on - orbit as fuel is expended, the configuration changes, or payloads are added or removed

    衛星質量特性對姿態控制器設計及控制效果有著很大的影響。在軌運行過程中，由於質量消耗等原因會導致衛星轉動慣量及質心位置的變化，實現衛星質量特性的在線辨識能夠有效提高姿態控制精度。
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