light velocity 中文意思是什麼

light velocity 解釋
光速
  • light : n 1 光,光線;光明,亮光 (opp darkness) Hang the picture in a good light 把那幅畫掛在能看清楚的...
  • velocity : n. 1. 迅速;快速。2. 速度,速率。3. 周轉率。
  1. If the velocity of atoms is near to zero, the light for ces will tend to confine the atoms near to nodes and antinodes. the stability depends on the magnitude of the negative slope of the light force, the depth of the potential well and the momentum diffusion coefficient. it is important to select the parameters, e. g

    如果通過激光冷卻能使原子速度降至很小甚至為零,光壓力的作用將使原子被較穩定地囚禁于激光駐波場的節點和反節點處,其穩定程度取決于該處光壓力曲線負斜率的大小、對應勢能的勢阱深度以及動量擴散系數的大小,因此,如何在實驗中合理選擇激光強度、失諧量等顯得尤為關鍵。
  2. Light gas gun was used to create shock pressure. staged samples, cuneiform window with aluminium coat on the reflecting surface and visar ( velocity interferometer system for any reflector ) were employed in the experiments. polymethyl methacrylate and ofhc copper were assembled as the impactor to impact staged samples

    採用氣炮加載,利用臺階樣品、雙點式visar ( velocityinterferometersystemforanyreflector )和鍍膜楔形窗口技術,以有機玻璃和無氧銅組合為飛片,碰撞無氧銅臺階樣品。
  3. At the event horizon, the escape velocity is equal to the speed of light

    在活動視界里,逃逸速度等於光速。
  4. Michell computed that a body 500 times the radius of the sun and of the same density would have at its surface an escape velocity equal to the speed of light, and therefore would be invisible

    米切爾計算一個500倍太陽半徑而且具有相同密度的物體就會具有它的表面逃逸速度等於光速,而因此不可見。
  5. When the escape velocity at a certain distance from the center reaches the speed of light, an event horizon is formed within which matter must inevitably collapse onto a single point, forming a singularity

    當離中心某個距離的逃逸速度達到光速,形成一個活動視界,在裏面的物質一定不可避免在單一點之上坍塌,形成一個奇異點。
  6. On the other hand, einstein discovered that the maximum velocity of any object is the speed of light. therefore, if the escape velocity on the surface of an object is greater than the speed of light, then nothing, including light, can escape from it

    另一方面,愛恩斯坦的相對論斷言宇宙中最高的速度便是光速,所以如所需的逃逸速度大於光速,那麼宇宙中包括光在內的一切都不可能逃離引力的魔掌,這顆恆星便成為
  7. Our study shows that the optical potential of the diffracted light of the semi - gaussian beam is far higher than that of the evanescent - light wave, and its maximum normal velocity of the incident atoms can be far grater than that of the evanescent - light wave under the same parameters, so the blue - detuned semi - gaussian beam, as a novel atomic mirror, can be used to efficiently reflect atoms with a normal velocity of greater than 1 m / s

    研究表明,半束蘭失諧高斯光束衍射光場的光學勢遠大於消逝波光場的光學勢,在同樣的參數條件下,入射原子的最大速度也比消逝波光場的大,所以作為一種新穎的原子反射鏡,半束蘭失諧高斯光束可以被用來有效的法向速度大於1m s的入射原子。
  8. Based on the wavevector diagram and group velocity, the property of light in photonic crystals can be analyzed quantitatively

    基於波向量圖和群速度,可以很好地分析光在光子晶體中的行為。
  9. The equipment of " double light harrier " was developed and applied to measure object ' s velocity, which improved the precision of measuring impacting velocity

    作者提出並完成研製的「雙擋光片法」測速裝置,成功地解決了沖擊速度的精確測定問題。
  10. According to phenomena observed during total solar eclipse, it can be pointed out that the velocity of gravitational field wave is equal to the velocity of light in vacuo

    摘要據日全食時的現象能夠得出:在真空中,引力波的傳播速度和光波的傳播速度相等。
  11. After analysing several kinds of light - weighting structures through ansys, hexagonal speculum structure is confirmed. in the aspect of the controling of speculum, the paper adopts the brushless dc motor which is partial assembled to drive the point speculum and the inductosyn as angle measuring component is selected, the ad2s80a the system is used to get directly angle and angular velocity. double closed - loop speed and position control is designed, as the pid control is the well - developed algorithm, which can achieve stable rotation and precise position control

    在指向反射鏡的擺動控制方面,採用低速性能好的分裝式直流力矩電機作為指向反射鏡的驅動電機,並採用感應同步器作為角度測量元件,運用軸角轉換器ad2s80a進行角度和速度的輸出,採用技術成熟的pid控制方案,進行速度和位置雙閉環控制,以實現指向反射鏡轉動速度的平穩性和位置的精確性。
  12. A digital circuit to filter interferential signals in light screen to measure velocity of flying bullet

    一種測速光幕靶的數字濾波電路設計
  13. The velocity of light is about 300, 000 kilometres per second.

    光速約為每秒30萬公里。
  14. We have strong technical force including many experts in the field of electic light source, with advanced equipment and high - quality materials, the company has developed and produced dozens of special electric light source products that have been widely applied in the fields of medical treatment, medicament, chemical engineering, sugar refining, instruments and meters, helth care, hairdressing, photoengraving, laser light, movie, fishing, velocity measurement, etc

    採用先進設備、高品質材料,開發和生產數十種特種電光源產品,廣泛用於醫療、醫藥、化工製糖、儀器儀表、衛生保健、美容美發、照相製版、激光、電影、誘魚捕魚、測速等行業。
  15. In this dissertation, according to the theory of mechanical dynamics and multi - body dynamics, a simulation model of nj2046 light off - road vehicle including suspension system, steering system and tires is built with the software carsim and so the vehicle steering characteristics are analyzed with the step angle input of steering wheel. it is found that the steering characteristics are different when the velocity and load are different, and the relationship between steering characteristics and velocity and load is presented

    本文根據機械繫統動力學、多體動力學理論,運用動力學模擬軟體carsim建立了包括懸架系統、轉向系統和輪胎等模型的nj2046越野汽車整車模擬模型,在此基礎上分析了nj2046越野汽車在方向盤轉角階躍輸入時的轉向特性,通過對不同車速、不同載荷條件下的模擬計算,得出了在這些條件下該車具有的不同表現特徵,揭示了轉向特性與車速、載荷和輪胎的內在關系。
  16. Directed by wave theory of fractured media, the elastic parameters of eda medium are determined in the light of hudson - fractured theory, and christoffel equation gives the formula of the phase velocity of p - wave by which, effects of velocity on behalf of kinetic characteristic and reflection coefficient on behalf of dynamical characteristic form fractured density and azimuty is discussed

    本文以裂隙介質的波動理論作指導,根據hudson裂隙理論,求出eda介質的彈性參數。在此基礎上,應用christoffel方程求出的地震縱波相速度表達式,探討了裂縫密度和裂隙方位對代表波場運動學特徵的縱波速度和代表波場動力學特徵的反射系數的影響。
  17. In this work, a new dual triangulate bluff body vortex flowmeter was developed, the flux lower limit value of which lower by 50 % that of the old single bluff body vortex flowmeter. the linear correlation of the correlation between the velocity pressures of fluid disturbs wave and that of vortex precession in vortex precession flowmeter was brought to light, and a spectrum phase discrimination method based on fft to remove the effect of fluid pulsating interference on vortex precession flowmeter was advanced

    研製出比傳統單鈍體渦街流量計流量下限降低約50的新型雙鈍體渦街流量計;揭示出脈動流中旋進旋渦流量計流體振動特性,並在此基礎上提出基於fft相位判別的數字信號處理方法來消除流場脈動對旋進旋渦流量計的干擾的方法。
  18. Supernova explosion at song dynasty and the principle of constancy of light velocity

    宋代超新星爆發事件與光速不變原理
  19. The method of velocity of light measuring with the cg - iii of light velocity apparatus is improved, the measuring accuracy is increased significantly

    摘要對cg -型光速測定儀的測量方法作了改進,通過實際測量的結果表明,該實驗方法改進后,光速測量的精度有了很大提高。
  20. He pointed out that, according to the principle of constancy of light velocity, the length of an object in the direction of its movement looked shorter when relative speed of the object was high enough

    對這一論點誰也沒有產生過懷疑,但有一個人對此首先發難,他就是愛因斯坦。本世紀初1905年,愛因斯坦提出:當物體的相對速度較大時,這個物體沿運動方向的長度「看上去」會變短。
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