空中密度 的英文怎麼說
中文拼音 [kōngzhōngmìdù]
空中密度
英文
aerial density-
The density of holes in the base is less than the density of free electrons in the emitter and collector.
基極中空穴的密度小於發射極和集電極中自由電子的密度。Measurement of air moisture. hydrometric parameters
空氣中水含量的測量.液體密度測定參數Previous researchers have always determined the sp atial distribution patterns ( sdp ) of castanopsis kawakamii with a sample - dis tance method. however, the distribution patterns may be affected by the quadrat si ze and, in the course of analysis, the density differences among the cluster plots are not considered ; therefore, differences of cluster plot size and the dispersi on degree among individuals of cluster plots can not be known. authers of this pa per have determined the spatial distribution patterns of castanopsis kawakamii population in different habitats by means of non - quadrat distance method and a nalysed the pattern intensity and grain of the sdp. the pattern intensity is defi ned with the relative density differences and the pattern grain can embody the d ispersion degree of the individuals in the plots, and the dispersion degree among the plots. the determined results are as follows. the intensities of the species range in order from strong to week : litsea mollifolia p. kawakamii i. purpure a r. cochinchinensis c. kawakamii c. carlessii d. oldphamii s. superba. the gra ins of the species queue in order from coarse to close : s. superba = litsea mollif olia r. cohinchinensis c. kawakamii = i. purpurea c. carlessii p. racemosam d. oldp hamii. these determined results tally basiclly with the results authers of this paper have got in determining the same plots by means of aggregate index access ing method. in view of this, it is held that the sdp of c. kawakamii is closely related to the habitats and biological features
前人都是採用樣方方法對格氏栲種群數量的空間格局進行測定，而格局分佈有可能受樣方大小的影響，且分析過程中沒有涉及聚塊間密度差的問題，因而無法掌握種群的聚塊大小差別及聚塊內個體間的離散程度.本研究採用無樣方距離法，測定不同生境的格氏栲種群空間格局，分析格氏栲種群格局的強度和紋理.強度以聚塊和間隙的密度差來定義，紋理則是體現聚塊內個體間的離散程度與諸聚塊間的分離程度.測定結果表明，格氏栲種群格局強度從高到低排列次序為：木姜子蚊母樹冬青茜草樹格氏栲米櫧虎皮楠木荷；格局紋理從粗到細的順序是：木荷=木姜子茜草樹格氏栲=冬青米櫧蚊母樹虎皮楠.這一測定結果與作者採用聚集度指標測定相同樣地格氏栲種群空間格局的結果基本相符.因此，格氏栲空間格局類型及分佈與格氏栲生物學特性及生境的關系密切Darkness or the space between has a structure and a function in the third dimension and all dimensions that sustain physicality
在第三密度和其他所有維系形體的密度中，黑暗或兩極空間擁有一個結構與功能。The numerical computing methods of the equations involving the static electric - magnetic field, electronic motion in the static electric - magnetic field, and so on are detailed. the methods of the boundary disposal are introduced. the phenomenon of secondary electron emission has also been studied
介紹了數值計算方法，包括靜電磁場的數值計算、在靜電靜磁場中電子運動軌跡的數值計算、空間電荷密度的數值計算和空間電位分佈的數值計算;介紹了邊界處理方法。Outholite skidproof fabric with high density is imported from atp company of usa. it is breathable and avoids midew forming in the middle layer due to the punched hole design. it is also shock absorbent to protect ankle
鞋墊高密度透氣的outholite防滑材料由美國atp公司提供，沖孔設計促進鞋內空氣循環，防止中間層黴菌的形成，特殊材料並具有吸震功能，有效降低腳部扭傷幾率。The summer rainfall anomaly of north china is closely related to indian low, west pacific subtropical high, westerly troughs and ridges in mid - latitude, south asia high, subtropical monsoon circulation and cold air activity on the corresponding period, and similar circulation pattern also appears in the preceding spring
結果表明： （ 1 ）華北夏季降水異常與同期印度低壓、西太平洋副高、中緯度西風槽脊、南亞高壓、副熱帶季風環流和冷空氣活動的異常都密切相關。華北夏季降水異常年春季的環流特徵與夏季類似。Spontaneous emission can be totally suppressed or strongly enhanced depending on the relative position of the resonant frequency from the edge of the photonic band gap and the photonic mode density. several novel phenomena can be obtained. the spontaneous emission displays an oscillatory behavior, classical light localization, photon - atom bound state, nonzero steady - state population and anomalously large vacuum rabi splitting. and localized mode associated with a defect site in an otherwise perfect photonic crystals, acts as a high - q micro - cavity
通過原子上能級與光子頻率帶隙邊緣的相對位置或者光子態密度，可以抑制或增強原子的自發輻射。分析並得到了一些奇異的現象，如自發輻射的諧振子行為、光的局域、單光子?原子局域態、上能級中存在非零穩態原子布居數、類似於真空中的拉比頻率分裂等。This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up
全文共分八章，取得的主要成果及創新點如下： （ 1 ）首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理，在考慮如下物理過程和參量的基礎上：光與物質的雙光子相互作用； stokes光的傍軸衍射； langevin （郎茲萬）噪聲源；晶體表面反射和端面反射；增益系數、光束口徑、脈寬和三倍頻光能量密度，推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。Research on the dynamic delay - time of hybrid igniting - device in the air is the basis of implementing it ' s the best trajectory and improving its max cannon - shot denseness
空中點火機構動態延期時間研究是底排? ?火箭復合增程彈實現其最佳增程彈道，提高最大射程密集度的重要環節。Hollow ferrites particles are the alternative to conventional solid ferrites particles, which have lower density, larger specific surface area and stability. moreover, it is expected electromagnetic wave can be reflected and absorbed again and again in the cavum of hollow particles which become its black hole. in addition, their electromagnetic parameters can be adjusted in a certain range by changing the thickness of the shell and the diameter of hollow microspheres, and the ability of absorbing microwave can be expected to improve
空心結構的鐵氧體是對傳統實心鐵氧體的改造，不僅密度小，還具有特殊的電、磁功能，有可能使電磁波在其空腔中反復振蕩吸收，成為電磁波的「黑洞」 ，從而增加材料的吸波能力，同時可通過調節核殼粒子的內外徑來調控電磁參數。Three - dimensional high - density space / time soundings serve as the main body of data consisting of 3 - hr interval doppler probings, 10 - 30 min rainfall intensity, surface raindrop sizes sampling and gps - guided flight cloud physics detections with output taken at 2 - sec and 200 - m intervals. and specific systems associated therewith are developed for multiple - way communication and data collection and storage, a platform for analysis, retrieval softwares for dominant items and multi - scale cloud models - all constitute a system of techniques for meso to microscale observations and analysis. 2 ) atmospheric water resource and macroscopic rainfall properties in dry periods of spring and autumn of the target region
以加密觀測的多普勒雷達、 3小時探空、 10 30分鐘雨強、地面雨滴譜等間隔取樣及在gps引導下的飛機雲物理探測等獲取的三維高時空密度的綜合探測為主體；配合專項設計開發的多路通訊採集存貯系統、多類信息的分析處理平臺、主要觀測項目的分析反演軟體，結合多尺度雲系模式，綜合構成層狀雲系中微尺度探測和分析處理技術方法。The expansion and dehiscence behavior during the vacuum reactive sintering below 660 of compact ti / al composite powders was experimentally investigated, and the reasons of expansion and dehiscence were theoretically analyzed. the method of low temperature reactive sintering was generalized, and the experiment testified the method effective. the rule of the expansion of the billets was generalized from the result of density of the billets
低溫反應燒結工藝:研究了高能球磨ti / al復合粉體在溫度低於660下真空無壓反應燒結過程中的膨脹和開裂行為，分析了產生膨脹和開裂的主要原因;並提出了能夠有效預防坯料開裂的方法;通過測定坯料在低溫燒結后的密度，總結了其體積膨脹的規律;通過x射線衍射技術分析了隨球磨時間不同，金屬間化合物的生成情況。In the course of the computation, the basic parameters of the atmosphere status of the examples, such as air density profile, temperature profile, relative humidity profile, were compared and further analyzed. the results were showed by means of data forms and curves, which reflect the basic status of the actual atmosphere clearly and detailedly
在計算過程中，對各樣點的大氣狀況的基本參數，如空氣密度廓線、溫度廓線、比濕廓線進行了比較和分析，並將計算結果以數據表格和曲線的形式列出，較為清楚、詳細的反映了實時大氣的基本狀況。Fine dust dispersed in air in sufficient concentrations, and in the presence of an ignition source is a potential dust explosion hazard
醋酸鈉粉塵在空氣中達到一定的密度，或在有明火源的情況下，有可能引起爆炸。The experimental results of air heat transfer show that the relative fin height, relative fin width, relative fin pitch and density of 3 - d ift with staggered arrangement fins all have an effect on heat transfer and flow friction. especially, the effect of fin density is bigger
空氣換熱實驗的結果表明：肋叉排三維內肋管的相對肋高、相對肋寬、相對肋間距以及肋密度均對其對流換熱特性有影響，其中肋密度的影響較大。If the vacuum energy density were really that high, all matter in the universe would instantly fly apart and galaxies would never have formed
要是真空能量的密度真的如此之大，宇宙中所有的物質早就被稀釋不見，更別提會形成星系了。Researching and analyzing on the test results of the influence of atmospheric parameters on outer insulation discharge voltage and its various emendation methods, it can be concluded that : with the change of relative air density, its humidity ratio h / ? will also change even though the absolute vapor mass ( absolute humidity h ) of the air is constant. consequently, the influence degree of the humidity on the discharge voltage should change, too
本文通過對以往的大氣參數對外絕緣放電電壓影響的試驗成果及各種校正方法的研究分析認為：隨著相對空氣密度的變化，即使空氣中所含水氣的絕對質量（絕對濕度h ）保持恆定，其比濕h也會變化，必然地，濕度對放電電壓的影響程度也會變化。Thirdly, based on a comparative analysis of urbanization level, space density, municipal utilizes development, and a number of economic and technical data in property development and building industry in east, west and central china, it is concluded that there are tremendous differences in building industry between the west and the east area ; gaps in urban and rural construction and development between the west and east area are embodied by urbanization level ; construction and building industry occupies a protruding position in western economy, but industrial efficiency, technological and equipment level are weak links hindering further development and competition of the region ; the extent to which the real estate market develops is a sever barrier to normal development of property industry in western region
第三，在社會經濟發展比較的基礎上，界定了東西部建設行業技術經濟比較的范疇及指標體系，通過對東、中、西部城鎮化水平、空間密度、城市首位度、城市市政公用設施建設水平和房地產、建築業發展指標等技術、經濟數據的比較、實證分析，筆者得出了東西部地區在建設行業發展上存在較大差異，東西部地區城鄉建設和發展差異主要表現在城鎮化水平上；建築業在西部經濟中佔有突出地位，但行業效益和技術裝備水平是進一步發展和競爭中的薄弱環節；房地產市場的發育程度嚴重製約著西部地區房地產業的正常發展等主要結論。Aerospace ; electrical circular connectors, medium and high density, rear release contacts ; assembly procedures
航空和航天.后松式接觸點的中密度和高密度圓形電氣連分享友人