真常數 的英文怎麼說

中文拼音 [zhēnchángshǔ]
真常數 英文
true constant
  • : Ⅰ形容詞(真實) true; genuine; real Ⅱ副詞1 (的確; 實在) really; truly; indeed 2 (清楚確實) cl...
  • : 數副詞(屢次) frequently; repeatedly
  1. In the design and application of electronic engineering, both in open circuit and in closed circuit, signal is certainly affected by environment, the status of the transport network and the change of the parameters of the components applied. then the characters of useful information will be changed more or less and the change is generally called as distortion, namely so - called signal distortion

    =在電子工程的設計和應用中,信號無論在開路傳輸或閉路傳輸中都受到環境、傳輸網路的工作狀態和應用的元器件參變化的影響,從而會或多或少地改變有用信息的性質,這種變化就是所謂的信號畸變現象,通稱作失
  2. Silk and man - made fibers are usually measured using the denier system. a denier is equal to the weight in grams of 9, 000 meters of yarn

    絲和人造纖維通用旦尼爾表示細度,且尼爾等於9000米長紗線的克重
  3. When the field is slowly - varying, the scalar field potential acts like a cosmological constant. in addition to the quintessence models, many other theories for dark energy have been proposed, including models based on super - symmetric gauge theories, super - gravity, small extra dimensions, large extra dimensions, quantum field theory effects in curved space - time. all these models are essentially based on the existence of a mass less scalar field acting at a cosmic scale

    除了空場模型外,科學家亦提出其他解釋黑暗能量的理論,這些模型建基於不同的物理理論或假設,例如超對稱規范理論超重力增加一些小或大的空間維量子力學在彎曲時空的影響等等,這些理論模型,返本溯源,其實背後都假設存在著一個特性類似於宇宙的無質量純量場。
  4. Harmonic distortion is one of the most common non - linear distortions, and it affects the playback performance of audio devices directly. harmonic distortion graph reflects the distortion distribution in the whole audio frequency range

    諧波失是音頻設備最見的一種非線性失,它直接影響到音頻設備的重放效果,諧波失曲線圖反映出設備在整個音頻范圍內的失分佈情況,是衡量設備性能的重要參
  5. Often i have visited the new york museum of natural history to touch with my hands many of the objects there exhibited, but i have longed to see with my eyes the condensed history of the earth and its inhabitants displayed there ? animals and the race of men pictured in their native environment, gigantic carcasses of dinosaurs and mastodons which roamed the earth long before man appeared, with his tiny stature and powerful brain, to conquer the animal kingdom, realistic presentations of the processes of evolution in animals, in man, and in the implements which man has used to fashion for himself a secure home on this planet, and a thousand and one other aspects of natural history

    我經到紐約自然歷史博物館去,用雙手無次地撫摸過那裡陳列的展品,我多麼渴望能用自己的眼睛看一看這濃縮的地球的歷史,以及陳列在那裡的地球上的居民? ?各種動物和以他們生活的天然環境為背景描繪的不同膚色的人種;以及早在人類出現以前就漫遊在地球上的恐龍和柱牙象的巨大骨架,當時的人類靠自己矮小的身軀和發達的大腦征服了動物的王國;還有表現動物和人類進化過程的逼畫面,和人類用來為自己在這個星球上建造安全居處的工具,以及另外許許多多自然歷史的其他方面的事物。
  6. A experienced equation which is summarized by many experiments is used to determine the number of mesosphere nerve cell and a sort of new square - sum function of errors is adopted. its characteristic is that weight errors of possible exceptional point is less. accordingly, the effect of errors of possible exceptional point is reduced, which make actual function relation simulation easier

    本系統針對bp演算法的局限性,給出了一種優化的bp演算法,採用經過大量實驗總結出的經驗公式來確定隱層神經元的個,並選取了一種新的誤差平方和函,該函的特點是對一些可能的異點的誤差權值設計的較小,從而降低了異值誤差帶來的影響,便於模擬出實的函關系。
  7. In this age of digital technology, artificial reverberation is not only more affordable than ever before, but can also be stunningly realistic and very controllable

    這個時代的字技術中,人造混響不一定比以前的好,但同樣令人覺得非是以及非容易控制。
  8. In six selected areas of the subtropical semi - humid evergreen broad - leaf forest ecosystem of yunnan diaolin mountain, during drought season from november, 1992 to april, 1993, authors studied and analysed, throught adopting the taxonomic, ecological and mathematical statistics method, the distribution, composition and domi - nant fungi of the small fungi as well as biodiversity. altogether 706 strains statistics unit, belonging to 28 genera, dominant fungi 678 strains statistics unit, 20 dominant fungi gen - era

    在雲南雕林山亞熱帶半濕潤綠闊葉林森林生態系統的六個具有代表性的樣區中,於1992年11月至1993年4月旱季期間,運用系統分類、生態分析和理統計的方法,對小型菌種群的分佈、組成、優勢菌及其生物多樣性進行了分析,共分離獲得小型菌菌株統計單位706株,分屬於28個屬,其中,優勢菌678株,分屬於20個屬。
  9. As far as social culture is concerned, it is a product of consumerist societies and culture, and the result of the vagueness between reality and fiction in a digitalized age. as far as the development of television is concerned, it is closely related to the history of television - - - - it is a reaction on television ' s trends of being commonplace and entertaining, and an innovation of tv programmes on the market

    從社會文化背景來看,它是消費社會和消費文化的產物,是字化時代實與虛擬界限模糊的結果;從電視自身的發展背景看,它是對電視故事化、日化和娛樂化要求的反應,是市場化背景下電視節目創新的一種表現形式,並與電視節目的發展過程緊密相關。
  10. In principle, physicists might like to examine one or a few vacua having the right cosmological constant to see if they offer testable predictions

    原則上,物理學家會想挑幾個有正確宇宙空來檢驗,看看它們是否做得出可試驗的預測。
  11. The leading candidate to explain dark energy ' s effects is vacuum energy, which is mathematically equivalent to the cosmological constant that einstein invented in 1917

    要解釋暗能量效應的首選,便是空能量,它與愛因斯坦在1917年所創的宇宙,在學上是等價的。
  12. The results showed that yielding the strength increase with the strain rate, the energy absorption increase with increasing strain rate and was related to the density. strain has slightly effect on the strain rate sensitivity of the solid material, but the strain rate sensitivity of fs increase with increasing true strain and also increase with incremental change in strain rate at the same true strain. the properties of thermal conductivity, electrical conductivity and electromagnetic shielding were studied

    實驗結果表明,泡沫鋁的屈服強度隨著應變率的增加而增加;應變對固體材料的應變率敏感度影響很小,但是泡沫鋁的應變率敏感度不是,而是隨著應變的增加而增大,在同樣的應變下,隨著應變率變化幅度的增大而增大;泡沫鋁的能量吸收隨著應變率的增加而增加並且和泡沫鋁的密度有關;泡沫鋁的吸能效率隨著應變率的增加略有下降。
  13. The speed of light in free space is one of the fundamental constants of nature.

    空中光的速率是自然界的基本之一。
  14. Numbers of reported casualties often less than half of the real number

    被報道的人員傷亡的量經少於據的一半。
  15. The comparative measurement method for vacuum gauge calibration is introduced. the construction, principle and process of the calibrator are described. the effects of six kinds of gas on the calibrated ionization gauge are explored and relative sensitivity is obtained. the necessity of the calibration on the vacuum gauge and instrument is proved by the research

    文章介紹了對空規管和儀器進行校準的比對法,闡述了校準系統的結構、原理及校準方法;探討了被校電離規在6種不同的氣體中的校準效果及校準前後的差異,說明了氣體歧視效應的存在和影響,得出了各氣體的相對;結果表明,對空規管及儀器進行校準是必要的。
  16. Therefore the vacuum energy cannot be set to zero and it ought to be included as a source for gravitation, where it acts like the cosmological constant

    換言之,不可以把空能量視為零,這種能量可視為一種引力源。特別的是,這種引力就好像液體一樣有負壓強,產生的排斥力相類于宇宙
  17. In our universe the size of the hidden dimensions is not changing with time : if it were, we would see the constants of nature changing

    我們宇宙的隱藏空間大小並不隨著時間而改變:假如它會變化,我們將看到大自然的也隨著改變。
  18. In other words, whilenominal exchange rates might vary, real rates should be prettyconstant

    換句話說名義匯率可以不斷變動,然實匯率應是
  19. To support smooth quality reconstruction under multiple rate constraints of transmission, it ’ s important to obtain the actual rate - distortion ( r - d ) function or distortion - rate function of each enhancement layer ( el ) frame

    為了能夠在不同的傳輸碼率下平滑重建fgs目標視頻流,基於幀的fgs增強層率失的獲取是一個非關鍵的問題。
  20. The best process for high quality tio _ ( 2 ) thin film deposited on k9 glass by reb is studied by using orthogonal test method, the se results indicate that the best process for tio _ ( 2 ) thin film deposition is the substrate temperature of 300, the total gas press in the chamber of 2 x 10 ~ 2pa and the deposition rate of 0. 2 nm - s - 1, of which the substrate temperature has influence on the optical properties of the deposited films notably

    文中首先以tio _ 2薄膜的折射率和消光系為研究對象,採用l9正交試驗法研究了在k9玻璃上制備高光學質量tio _ 2薄膜的最佳工藝條件。橢圓偏振儀的測試結果表明,制備tio _ 2薄膜的最佳工藝條件為:基片溫度300 ,工作空2 10 ~ ( - 2 ) pa ,沉積速率0 . 2nm ? s ~ ( - 1 ) ,其中基片溫度對薄膜光學的影響最大,該結果具有較好的可重現性。
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