source distance 中文意思是什麼

source distance 解釋
震源矩
  • source : n 1 源頭，水源，源泉。2 根源，本源；來源。3 原因；出處；原始資料。4 提供消息的人。5 血統。vt 〈美...
  • distance : n 1 距離，路程。2 遠隔，遠離；遠處，遠方。3 （時間的）間隔，長遠，長久。4 懸殊。5 隔閡，疏遠。6 ...
  1. Cygnus x-3 is a binary x-ray source located at a distance of 10kpc.

    天鵝座X-3是一個距離約10千秒差距的雙重X射線源。
  2. According to the requirements of the cng on neutron flux, critical wavelength and distance between inpile guides and the cns, the relation between the source size and the critical angle of the coating material of the inpile guides as well as neutron flux at exit of the cngs have been studied

    根據導管設計指標的需要，研究了冷源尺寸與堆內導管內壁鍍膜材料的全反射臨界角和導管系統出口處中子注量率的關系。
  3. Cygnus x - 3 is a binary x - ray source located at a distance of 10kpc

    天鵝座x - 3是一個距離約10千秒差距的雙重x射線源。
  4. The distance between the acoustic-emission source and the receiving transducer, and the background noise level are primary factors in selecting a particular frequency band.

    聲發射源與接收訊號傳感器間的距離以及環境噪聲的電平是選擇頻帶的主要依據。
  5. Radium can be fixed some distance from its original source.

    鐳在離它的原始母體一定距離上固定下來。
  6. We heard the voices will be weather, the distance from the sound source, whether wearing headphones and ear shape factors

    我們聽到的聲音會受到天氣、離聲源遠近、是否戴耳機以及耳朵形狀等因素的影響。
  7. Judging from the distance of those x - ray source from the earth, these galaxies may be created 500 millions years after the birth of the universe currently the universe is 13. 7 billions years old

    越向宇宙深處觀望，代表我們越往遠古追索，這些星系，可能只是宇宙誕生后五億年的產物現在宇宙的年是137億歲！
  8. When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis

    對壓制式干擾來講，干信比越大，雷達的發現目標的概率就越小，由於分散式干擾的干擾效能在於其合成功率，在分散式干擾單元分佈之後，各個干擾源與被干擾對象之間的距離的不確定性，帶來了干擾信號相位的不確定性，增加了分析干擾效能的復雜度。
  9. In the experiment, we use the he - ne laser and the semiconductor laser as the source, record the bessel beam patterns behind the axicon by using a digital camera and a microscope, measure the radius of the bessel beam central spot by film - scanning and measure the effect of both the radius of the aperture and the open angle of the axicon on the maximum non - diffraction distance. the experiments show that a specific propagating range has constant power and the beam has a bessel - like distribution in this range. the results agree with the beam corresponding to a diffraction free beam

    同時我們還採用膠片掃描的方法測量了無衍射光束的中心光斑尺寸，測量了不同光闌孔徑和不同稜角情況下的最大無衍射距離和傳播軸附近橫截面內微小光孔中的光強，實驗結果顯示當激光光束經過軸棱錐轉換後有一段距離功率變化很小，且分佈近似貝塞爾分佈，符合無衍射光束的特性;經過聚焦后，呈現三維分佈中空的光束bottlebeam ，實驗結果與理論分析基本吻合。
  10. Advantages, disadvantages and limits of arm are thoroughly examined using signal processing methods. based on the above, incoherent and coherent two - point - source decoy methods and modified coherent two - point - source decoy methods to deflect arm are brought forward. arm ’ s homing heads are generally of mono - pulse structure, so coherent two - point - source ’ s interference resembles that to mono - pulse radar except that interference to radar belongs to far field scope, but interference to arm varies from far field to near field because relative distance drastically changes between the homing head and the two - point - source with missile ’ s homing head continually approaching the target

    Arm的導引頭一般為單脈沖體制，因此，相干兩點源對導引頭的干擾類同於對單脈沖雷達的干擾，不同的是:對雷達的干擾都是遠場，而導引頭隨著導彈不斷接近目標，兩點源與導引頭的相對位置發生劇烈變化，由遠場變化到近場;導引頭天線口面上的合成場也發生了大的變化，相位波前的畸變產生干擾，這就是相干兩點源誘偏的基本思想。
  11. According to the target distance ( 5 ~ 50m ), a c - band transceiver for ranging was presented in this thesis. the focus of this work was on designing a c - band frequency - modulated continuous - wave ( fmcw ) frequency source, a receiver and microstrip antenna

    本文針對所探測目標的距離（ 5 ~ 50m ） ，研製了c波段測距收發前端，主要包括c波段調頻連續波（ fmcw ）頻率源，接收電路以及微帶天線。
  12. Now the diffuse earthquake has been used in the earthquake hazard analysis for the nuclear power plant. so we collect some records from the small - moderate earthquakes with magnitude between 4. 0 - 6. 5 and distance from the source less than 70 km. then we develop the attenuation laws of these earthquakes expecting to reflect the attenuation laws of the diffuse earthquakes

    通常為近源中小地震的彌散地震影響是核工程安全性評價中的重要內容，為滿足核工程地震安全性評價工作的需要，本文選取了一些震級介於4 . 0 ? 6 . 5之間，距離小於70km的中小地震的近場記錄，對這些地震的衰減規律進行了研究。
  13. With the increasing requirements for detecting distance, photoelectric module, including light source and modulation, can be put under water to reduce the loss of light power in the optical fiber transmission and transmit the detected signal to the signal processing workstation on the shore. optical transceivers must be applied to realize the low - rate optical communication between the workstation on the shore and the long - distance photoelectric modules under water

    隨著光纖水聽器陣列技術的發展，可將光源與調制部分作為遠程光電模塊置於水下，減少光纖傳輸過程中光波信號的損耗，而直接將光纖的探測信號傳回岸基工作站進行處理，以增加光纖水聽器的探測距離。
  14. In the last part, an experiential formula for nondimensional thermal stratification height is obtained, which includes inlet temperature t, inlet velocity v, heat transfer of the wall body q and the distance of heat source l. in order to obtain a more realistic result, the ? model is used to simulate the airflow and the buoyancy item is treated by boussinesq hypothesis. the paper investigates the flow field of the displacement ventilation in an office by a numerical method

    兩方程湍流模型為基礎的壁面函數處理方法，對熱浮升力項採用了boussinesq假設，得到了收斂的溫度場、速度場分佈。在此基礎上，給出了熱力分層高度的計算方法，並分析了送風溫度、送風速度、圍護結構傳熱和熱源分佈等因素對熱力分層高度的影響。
  15. 7. the source rock in de nan depression has the characteristics of a short period of expulsion, early tectonic ceasing, short migration distance, therefore ; the most favorable places for entrapment is near oil kitchen and on the pathways of migration

    7 、德南窪陷低熟油灶具源巖生排烴期短、構造定型早、鍋底生油、油氣運移不遠等特點，故近源、在運移路徑上的圈閉是形成油氣藏的有利地區。
  16. Shortening the time of exposure, increasing distance from a radiation source and shielding are the basic countermeasures or protective measures to reduce doses from external exposure

    縮短時間增加距離及設置屏蔽是減少外來輻射照射的基本輻射防護措施。
  17. Shortening the time of exposure, increasing distance from a radiation source and shielding are the basic countermeasures ( or protective measures ) to reduce doses from external exposure

    縮短時間、增加距離及設置屏蔽是減少外來輻射照射的基本輻射防護措施。
  18. Sphere - if this button is pressed the light shed by the source is confined in the sphere of radius distance rather than going to infinity with its decay ratio

    球體按下這個按鈕，光源發射的光線將被封閉再一個球體內，而不是按照衰減率發射到無限遠。
  19. Under the new circumstances, the library should optimize its information services, including the network information source catalogue service, network information source distance service, and network guidance service

    面對新形勢，在網路環境下，圖書館應優化信息服務，做到優化網路信息資源目錄服務、網路信息資源遠程服務和網路導航服務。
  20. The amplitude of the waveform in a borehole with a vertical fracture gradually decreases with the increase of the source distance, but the decrease velocity is varied with the location of the fracture

    5 、垂直裂縫地層井內全波幅度隨源距增大而逐漸減小，但其降低速率隨裂縫位置變化是不同的。
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