長射程輻射 的英文怎麼說

中文拼音 [zhǎngshèchéngshè]
長射程輻射 英文
long range radiation
  • : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
  • : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
  • : 名詞1 (規章; 法式) rule; regulation 2 (進度; 程序) order; procedure 3 (路途; 一段路) journe...
  • : 名詞(車輪中車轂和輪圈的連接物) spoke
  • 射程 : range (of fire); reach; throw; flightshot; gunshot; carry; actual range; firing range
  • 輻射 : radiation; exposure; radio; beaming
  1. First, it was taken that a discuss about the effects of geometry parameters of each piezocrystal on direction parameters ( main lobe width, side lobe amplitude, elimination of grating lobes ), amplitude of ultrasonic pressure, element viberation pattern, mutual radiation among elements, efficient test regions, ability to keep accurate and near - field distance and so on. based on the direction of ultrasonic field in ulpa deduced by ourselves. in addition, on the base of integrating all kinds of factors, it was put forward that the principle and method for optimized design of geometry parameters of piezocrystals in ulpa transducer, and its design programme and interface were compiled

    首先在推導超聲相控線陣換能器聲場的指向性的基礎上,就各個晶片幾何參數對指向性指標(主瓣寬度、旁瓣幅度、消除柵瓣) 、聲壓幅值、陣元振動模式、陣元間互、有效檢測區域、精確控制能力、近場度等方面的影響進行了論述,並在綜合各方面影響的基礎上,提出了晶片幾何參數優化設計的原則和方法,編寫了設計序和界面。
  2. By analysing the regional characteristics of distribution of producing locations of medicines included in shennong s classic of meteria medica, it is pionted out that, based on quantity of production, yizhou of the 13 bu - administrative regions and taishan prefecture are the locations for massive production of medicines in the han dynasty. judging from distribution of locations, luoyang, the eastern capital and changan the western capital are the two centers, with the former more productive than the latter. it is suggested that the hongnong prefecture, the mid point between luoyang and changan, was an important crude drug trading center in the eastern han dynasty. the records of producing locations in shennong s classic of meteria medica reflects the importance it attaches to the genuine producing sites and dimonstrates the changes of genecine locations of drug production since the qin - han periods

    分析《本草經》藥物產地分佈的區域特徵后指出:以出產藥物數量計,漢代十三部政區中之益州,郡國中之泰山郡是當時大宗藥物產地;從藥物產地分佈來看,藥物出產分別以東都雒陽、西京安為中心,向外,而東部產藥多於西部;推測位於雒陽與安中心點的弘農郡,可能是東漢時期重要的藥材貿易場所; 《本草經》關于藥物產地的記載,反映了此書對藥物道地性的重視,同時也在一定度上揭示了秦漢以來藥物道地產區的變化。
  3. In order to compare the impact of radiation parameterization schemes on simulated short - range weather process and improve the radiation parameterization schemes in meso - scale model version 5 ( mm5 ), the scheme of goddard short wave radiation parameterization has been replanted from weather research and forecast model ( wrf ) to mm5

    為了比較短波參數化方案對中國短期天氣過模擬的影響,並進一步完善中尺度模式mm5中的的參數化方案,作者將wrf中goddard短波參數化方案移植到模式mm5中。
  4. This paper is to investigate the effects of convection and radiation on the nonlinear dynamic process in czochralski ( cz ) crystal growth

    摘要本文之目的主要在探討熱對流及熱效應對柴氏晶之非線性動態過之影響。
  5. With the increase of exposure time, the antioxidative ability of spirodela polyhiza dereased, sod and ap activities were induced, and asa content of treated plants were always lower than those of control plants, but the proline ( pro ) contents in treated plants increased. these factors would break the balance of the metabolism of ros and the active oxygen accumulation in leafy thallus of spirodela polyhiza could be the result, the membrane lipid peroxidation was accelerated ( mda content increased ), ultra - microstructure of chloroplast was damaged, photosynthetic capacity dereased, biomass ( dry weight ) reduced

    實驗研究結果如下: ( 1 ) uv - b處理后前2天,紫萍超氧化物歧化酶( sod )和抗壞血酸過氧化物酶( ap )等抗氧化酶系統有不同度的升高,隨著uv - b處理時間的延,紫萍體內抗氧化保護系統能力下降, sod和ap的活性下降,並且非酶類抗氧化物質抗壞血酸( asa )含量一直低於對照組,而脯氨酸( pro )的含量則一直在升高。
  6. The transpiration of neorgelia carolinae meyendor ffii was not distinctly affect hi by enhanced uv - b radiation in a short - term, yet it was increased initially and then decreased with the increase of exposure time, and the greater decrease with higher uv - b radiation

    短期內uv - b對紅彩鳳梨的蒸騰作用無明顯影響,但隨時間的延,其蒸騰作用先增強后減弱,且隨uv - b的強度的增加其減弱的度加劇。
  7. It is found that the fwm field can cause the asymmetry of electromagnetically induce transparency profile. in addition, the effect of different propagating orientations of probe field on the electromagnetically induced transparency is also discussed. in the molecular multi - level system with the perturbed superposition levels, we discuss the electromagnetically induced transparency, spontaneous emission enhancement, double dark resonance and double electromagnetically induced transparency by using the density matrix equation under weisskopf - winger approximation and dressed - state density matrix equation

    針對實際的實驗條件,考慮了一種影響量子干涉的新的因素-四波混頻場,研究了四波混頻場對雙光子探測的-型能級體系的eit的影響,發現四波混頻場能夠導致雙光子探測的eit線型的不對稱,在此基礎上,討論了不同探測場的傳播方式對eit的影響,針對分子中實際存在的包含有微擾能級的不同多能級系統,我們分別採用綴飾態繪景下的密度矩陣方和weisskopf - wigner近似下的密度矩陣方詳細地討論了電磁感應透明、自發的干涉相消和相、雙暗態共振和雙電磁感應透明現象。
  8. We presents a detailed studied of the linewidth of parametric light in clbo - opo caused by the linewidth of pumping beam, off axis phase matching, divergence angle of pumping, time above threshold, high gain coefficient of nlo crystal, fluctuate of cavitylength, spontaneous radiation, according to the momentum and energy conversion laws, and the sellmeier equations of the clbo, we calculated curves of the type - i and type - ii compared with the bbo ' s

    根據能量動量守恆關系和clbo的色散方,詳細分析了由於泵浦光的線寬、泵浦光偏軸泵浦、泵浦光的發散角、泵浦光功率超過參量光振蕩閾值一定倍數、高增益系數、有效腔波動以及自發引起的參量光線寬,並得到了與bbo晶體在類、類相位匹配下比較的理論曲線。
  9. It calculates the effects during each time step of winds carrying along the various atmospheric properties and of the processes of evaporation, rainfall, surface friction, infrared cooling and solar heating that occur in the area of interest

    在每個時步里,模式計算的作用包括:各種隨著風改變的大氣性質、蒸發過、降水、表面摩擦以及在重要地區的冷卻與日照加熱。
  10. The results show that a warm high ridge at the middle level and transformed surface cold high over the plain provide a good background condition ; a cooling process produced by net surface radiation fluxes is the trigger and strengthening mechanism for the fog event ; the subsidence flow at the middle and low tropospheric levels is favorable for the setting - up and maintenance of stable stratification at the boundary layer and weak wind condition at the ground layer over the fog region ; the transportation of weak warm advection at lower levels and weak lift motion at the boundary layer play a very important role to the long maintenance of the fog event ; the intrusion of north wind accompanied by cold advection is a main dynamic factor of the fog dissipation

    結果表明:在中高層暖性高壓脊及地面變性冷高壓穩定維持的大尺度背景條件下,地表凈引起的近地層冷卻是大霧過的觸發和加強機制;中低空下沉氣流的存在有助於近地層的弱風條件和穩定層結的建立;低層暖平流的輸入和邊界層的淺層抬升是大霧時間持續的原因;伴隨冷空氣南下的偏北大風是驅使大霧消散的動力因子。
  11. On the basis of research available and through seven aspects : the family structure, vocational structure, the structure of the mode of life, psychological and cultural structure, income structure, organization structure and social identity, the thesis reflects the process of urbanization in the community between rural and urban areas, especially demonstrates the unique characteristics of urbanization in the community between rural and urban areas of the east of china by taking shui village and kong village in anning district lanzhou city of gansu province as the example and using the advantage of multiple subjects such as sociology, anthropology, economics, etc. the transition of the community between rural and urban areas is their imitation and incorporation into the urbanization, and the effect of their spread and radioaction

    本研究在已有研究的基礎上,應用社會學、人類學、經濟學等學科的綜合研究的優勢,以蘭州安寧區水村和孔村為例,通過對兩村家庭結構、職業結構、生活方式結構、心理文化結構、收入結構、組織結構和身份認同等七個方面的實證研究,反映了城鄉結合部的城市化進,特別是反映了中國西部內地城市化進獨特的特點。城鄉結合部轉型過是城鄉結合部自身模仿、融入城市以及城市的擴散效應嵌入的過;城鄉結合部是許多矛盾、困惑及經驗反映最集中的場所;同時是將漫的城市化進濃縮在一個短期內進行的相對較小的區域。
  12. The conformal microstrip antenna with some unique character has been applied in many fields, especialy on speedy objects. in this paper, an efficient fdtd algorithm is introduced to analyse the microstrip antenna. firstly, the fdtd formula in descartes coordinate system and in cylindrical coordinate system are obtained from the time _ dependent maxwell equations using the yee algorithm in a calculating region where the dielectric parameters are independent of time and space. the choice of the space discretization units and the time discretization interval are discussed which are decided by the accuracy and stability respectively. the shape and setup of the excitation source are discussed too. the excitation source is chosen to be gaussian pulse in shape. secondly, the mur ' s first - order and second - order boundary condition are deduced in cylindrical coordinate system. the methods of transforming radiation fields from near zone to far zone in the frequency domain and in the time domain are presented when fdtd is applied to analyse the characteristics of far zone. finally, three kinds of microstrip antennas are analysed. they are a slot antenna that lies on a plane ground of a microstrip, a slot antenna that lies on a cylindrical ground of a microstrip and a microstrip line _ fed aperture coupled stacked rectangular patch antenna in cylindrical coordinate system

    本文從麥克斯韋旋度方出發,建立了笛卡兒坐標下無源空間中均勻無耗媒質的fdtd基本方和圓柱坐標下無源空間中均勻無耗媒質的fdtd基本方,詳細討論了fdtd法計算中時間步和空間步的選取原則以及激勵源的類型和設置;推導了mur一階和二階邊界條件在圓柱坐標下的差分格式;給出了在用fdtd法計算天線的遠場特性時必需採用的頻域和時域近場遠場變換技術;最後用fdtd法計算了平面微帶縫隙天線、柱面共形微帶縫隙天線和柱面共形微帶層疊天線的輸入阻抗和遠區場,並分析了天線的一些參數的變化對天線輸入阻抗的影響,得出了一些有用的結論。
  13. Firstly, the integral - differential equation described the radiation field evolution is derived, and then the instability of its solution is also investigated analytically. by using the perturbation and iteration method, the threshold detuning and threshold linear growth rate of the unstable solution are analyzed and discussed in detail

    首先,建立了一個描述場演化的積分一微分方,解析分析了系統解的不穩定性,並採用線性方解的微擾迭代方法進一步對系統不穩定解出現的失諧量閾值和線性增率閾值等作了詳細討論。
  14. The enterprise value of diligence, innovation, being practice and enterprising of employees of hengxingsheng generated during enterprise operation as well as the sense of collective prove to be quite positive

    恆興盛人在期的生產經營過中所形成的勤奮、創新、務實、進取的企業價值觀和群體意識已具積極的功能。
  15. 2 ) radar incidence angle and surface roughness correction : to make radar incidence correction and eliminate the surface roughness effects, a wide range of surface parameters ( soil moisture, surface rms height, correlation length, incidence angle ) was input to the ibm model to simulate the effect of surface roughness and radar incidence angle on the sensitivity of soil moisture to the radar backscattering coefficient. a simple model was established to simulate the effects of incidence angle and surface roughness. 3 ) establishment of soil moisture change inversion model : according to a modified ibm model simulation results, the bare surface backscattering coefficients can be expressed as a funtion of the dielectric component for a given surface roughness when the surface slope greater than 2. 0, which is valid for most nature surface : in above equation, r0 is the surface reflectivity at normal incidence

    本研究中,首先利用基於微波傳輸方的微波植被模型和積分方( iem )模型模擬了各種地表土壤水分含量情況下,植被覆蓋、地表粗糙度(包括地表均方根高度和相關度) 、雷達入角對c波段(頻率4 . 7ghz )水平極化( hh )雷達後向散系數的影響,在此基礎上,建立模型消除了植被覆蓋、地表粗糙度、及雷達入角對雷達後向散的影響,利用多時相50m解析度radarsatscansar雷達後向散系數圖像反演得到了地表土壤水分變化模式信息。
  16. - ray at room temperature got 40 %. the results show that the modified growth technique is a new and promising method for grow ing highly purity and perfect cdse single crystals, and by improving the technique of single crystals growth and fabricating process, the resolution of cdse detectors can be improved further

    晶體生和探測器制備工藝技術是制備性能優異的探測器的基礎,因此,通過不斷改進晶體生和探測器的制備工藝技術,可以制得低背景噪聲、性能穩定及能量解析度較高的cdse室溫核探測器,這也是需要進一步研究和提高的地方。
  17. Mainly by using the data of land meteorological observation and sun radiation of mohe area, heilongjiang province, which is located deciduos needlelaf forest area in north china from 2001 to 2002, this paper adopts bats ( biosphere - atmosphere transfer scheme ), accepted in the world, and radiation computing solution developed by zhou suoquan et al

    本文採用國際上公認的陸面過模式( bats )和周鎖銓等的計算方案,主要選取大興安林區落葉針葉林區的漠河來進行試驗分析。使用2001 2002年常規地面氣象觀測資料和太陽資料,以6小時為時間積分步,進行了陸面過和植被生的模擬試驗。
  18. All the products are applicable in a wide range of fields, such as electronic appliance, metal processing, automobile manufacturing, fashion, textile material compounding, shoes manufacturing, packing, reflective signal, communications, structure, decoration, waterproof etc, wildly used in adhesion, compound, corrosion resistance, antiseptic insulation for special materials. the series products of pu sieve - plates were manufactured by xinfapu company have got the certificates of iso9000 - 2000, gold prize of china trade fair, and national patent

    鑫發聚氨酯篩板充分地利用了聚氨酯彈性體卓越的耐磨性能,寬廣硬度范圍內的高強度,高伸和高彈性,良好的減震性能以及耐油,耐低溫,耐熱老化,抗,電絕緣等性能,加上其合理篩孔結構和安裝結構設計,被廣泛的運用於各種大型工的砂石系統,冶金礦山的選礦篩分系統,及其他使用篩分機械振動篩選的企業。
  19. Standard practice for qualification and long - term stability of computed radiology systems

    計算機系統的合格鑒定和期穩定性的標準規
  20. This research has closed relationship with a wide range of cross - science areas, such as basic research on cancer therapy by heavy ion radiation method, radiation danger level evaluation in space and biological damage induced by long term, low - level dose radiation environment, etc. dna is the carrier of biological information and the main target of biological effects induced by ionizing radiations

    從重離子治癌的基礎性和先導性的研究,載人航天飛行過中的太空危險性評估,到期在低劑量照環境下的放性對機體損傷等等,都與電離所致生物損傷的研究有著密切的關系。 dna (脫氧核糖核酸)是生命信息的載體,也是生物效應的最主要的靶分子。
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