space density 中文意思是什麼

space density 解釋
空間密度
  • space : n 1 空間;太空。2 空隙,空地;場地;(火車輪船飛機中的)座位;餘地;篇幅。3 空白;間隔;距離。4 ...
  • density : n. 1. 稠密;濃厚。2. 【物理學】濃度;密度;比重。3. 愚鈍,昏庸。
  1. Given the initial conditions including ( 1 ) number density distribution in space which has the similar form to the present day ones, ( 2 ) both the power law and gaussian mass functions for clusters, and ( 3 ) two different velocity distributions which one has a constant dispersion and the other is described by the eddington formula, the dynamical evolution of globular clusters in our milky way galaxy is investigated in detail by means of monte carlo simulations

    本文採用與觀測結果具有相同形式的球狀星團空間密度分佈函數,在給定兩種球狀星團系統的初始質量譜(冪律的和對數高斯的)和兩種球狀星團系統的初始速度分佈函數(愛丁頓速度分佈函數和常數的速度彌散度)條件下,我們採用montecarlo的方法對球狀星團系統的動力學演化進行討論。
  2. At last, the probability density function shows multi - fractal characteristic, which is gauss distribution in euclidean space

    流體微團的概率密度分佈函數也表現出多重分形特徵
  3. At the same time, the quality of different - state water was studied. the results show : the soil bulk density of the fir wildwood heightens with the increase of soil depth, specifically 0. 74 > 0. 94 andl. 34g / cm3, the saturated, canaliculus and field moisture contents decrease gradually in layer a, b and c, accordingly the soil total foveola decreases gradually, and the moisture - hold capacity of the soil lessens gradually with the increase of the soil depth ; there is small difference of the soil bulk density between layer a and b in the outer space, which are respectively 0. 92 and 0. 99g / cm3, and the other laws are the same as the in ner in the main ; reverse success often occurs in the low position of the thoroughly - fell trace and plateau marsh is formed

    結果表明:冷杉原始森林土壤容重隨土層深度的增加而增大,分別為0 . 74 、 0 . 94 、 1 . 34g cm ~ 3 ,飽和持水量、毛管持水量、田間持水量a層、 b層、 c層逐漸減小,十壤總孔隙度也逐漸減小,土壤的持水能力隨深度的增加逐漸減弱;林外空地a層、 b層十壤容重相差不人,分別為0 . 92和0 . 99g cm ~ 3 ,其它規律與林內人體相同:皆伐跡地的低洼地段容易發生逆行演替,形成高原沼澤地。
  4. It influences the miaow thiazole quinoline to lose slowly that the experiment is drawn the pharmaceutical loses slowly the factor of performance has temperature mainly, density, the membrane time in advance, and design many group ' s simulation systems for different influence of these three factors, is it is it should lose pharmaceutical to lose pharmaceutical slowly one positive pole type, lose performance is it is it form space location hinder after the membrane to absorb to come from mainly slowly slowly to appear to prove, thus isolated the carbon steel base body and corrode the medium

    實驗得出影響咪唑啉緩蝕劑緩蝕性能的因素主要有溫度,濃度,預膜時間,並針對這三個因素的不同影響設計了多組模擬體系,驗證出該緩蝕劑是一種陽極型的緩蝕劑,緩蝕性能主要來自於吸附成膜后形成空間位阻,從而隔離了碳鋼基體和腐蝕介質。
  5. Several analysis methods such as casting slice, scanning electron microscope, porosity and permeability data, mercury injection data and density of fissures are used to study the reservoir properties of volcanic rocks in huang - yu - re area, the east sag of liaohe basin. volcanic rocks in this area are mainly composed of basalt, diabase, tuff and trachyte. the dominating type of volcanic reservoir space includes secondary solution pores and structural fissures

    通過火山巖的常規物性分析壓汞分析和裂縫密度分析,結合鑄體薄片和掃描電鏡,研究了遼河油田黃于熱地區的火山巖儲層物性特徵,認為該區火山巖儲層巖石類型主要有玄武巖輝綠巖凝灰巖和粗面巖,主要儲集空間類型為次生的構造裂縫和溶蝕孔縫。
  6. The space distribution of pigment gland density on eleven places was analyzed by allotetraploid of ( g. arboreum g. bickii ) and varieties with pigment gland of g. hirsutum g. barbadense and the progeny population which is crossed by allotetraploid of ( g. arboreum g. bickii ) g. hirsutum and ( g. arboreum g. bickii ) g. barbadense

    摘要利用(亞洲棉比克氏棉)異源四倍體和陸地棉、海島棉有色素腺體品種以及由(亞洲棉比克氏棉)異源四倍體為母本,以陸地棉和海島棉有色素腺體品種為父本,組配成的雜交後代群體,對植株上十一個部位色素腺體密度在群體內的分佈進行了初步分析。
  7. 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。
  8. Large deviation for density - dependent birth - death process on countable state space

    可數狀態密度相依生滅過程的大偏差
  9. Space density profile

    空間密度輪廓
  10. The variation with the time of the mean density of all particles, electron temperature and their space distributions in the discharge cell are calculated in this paper

    使用eme模型模擬計算新型蔭罩式結構和傳統的表面放電式結構,對這兩種結構的模擬結果進行比較分析。
  11. Even relatively short stays in space can produce profound changes in the body, consistent with what nasa euphemistically terms “ space adaptation syndrome ” : a loss of red blood cells, a reduced ability to exercise, a diminution of bone density, weight loss, cardiac arrhythmia, even a lengthening of the body

    即便在太空逗留相對較短的時間也會給身體造成巨大的影響,這被美國國家航空和宇宙航行局婉轉地稱為「太空適應綜合癥」 ,表現為紅血球數量減少,運動能力下降,骨質疏鬆,體重下降,心律不齊,甚至身體拉長。
  12. The extra space allows for more room to maneuver and decreases the density of friendly forces, which in turn increases the security of the unit by making it harder for an enemy to inflict large casualties via a sudden ambush or explosive trap

    更大的間隔給了隊伍更大的運動空間,降低了隊員密度,敵人就難以通過伏擊或路邊炸彈把我們一窩端,從而增強了安全性。
  13. Such control can be realized in case where a atom interact with photonic band gap matericals when the atom is placed in photonic crystals whose density of modes is dramatically different from that of free space vacuum. it was known that control could be achieved by varying the frequency ( which leads to the changes of the relative position of the upper levels from the forbidden gap ) or by varying the photonic density of modes ( dos ) or by varying the intial atomic state

    由於光子晶體具有不同於真空中的光子態密度,原子和光子帶隙材料便發生相互作用,這樣便可以控制原子的自發輻射。改變原子上能級與光子禁帶邊緣的相對位置、材料中的光子態密度或原子初態都可以控制原子的自發輻射。
  14. Understanding building dish, the village builds density ( cubage is led ), the serious content such as design of village environment construction, gardens and parking space, demand relevant data and literal commitment according to need

    了解樓盤、小區建設密度(容積率) 、小區環境建設、園林設計和停車位等重要內容,並根據需要索取相關資料及文字承諾。
  15. The model allows for a reduction in density on the tamar site, showing that the main 20 story high - rise can be removed and replaced with open space. this answers the call by many to preserve government hill by accommodating the various departments and bureaus of government at the current central government office site and murray building

    這模型可減低添馬艦地區密度,移走二十層高的建築物,讓該地方有更廣闊的空間,這亦回應了一些倡議保留政府總部人士的訴求,讓各政府部門繼續沿用美利大廈的辦公室及政府總部。
  16. We obtained holographic interferogram, from which we got the space distribution of plasma electron density by abel inversion

    由全息干涉條紋圖樣求解等離子體電子密度空間分佈要用到abel變換。
  17. Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results

    基於空間一頻率域中交叉譜密度函數的傳輸理論,研究了多色矢量gsm光束通過abcd光學系統傳輸時偏振特性的變化規律,首次推出了矢量高斯一謝爾模刑fgsm )光束通過近軸abcd光學系統交叉譜密度矩陣的傳輸公式,並對矢量gsm光束傳輸中偏振的變化、譜寬的影響和強度的分佈等進行了統一研究。
  18. A method is proposed to construct a localized active functional space from the density matrix of a large system. the large system is partitioned into central and surrounding areas. the active functional space is mainly localized on the central area. it contains all basis functions centered at the central area and all the orbitals which consist of the basis functions localized in the surrounding area and interact with the basis functions in the central area to a certain extent. an integral number of electrons are involved in the localized active functional space which can be considered as a relatively independent subsystem in the large system and for which formally isolated quantum chemical calculations can be performed. the related program has been coded and is checked through calculating the number of 4

    報道了從大體系的密度矩陣出發構造定域于指定局部的活性泛函空間的方法和程序。將大體系劃分為中心區和環境區,活性泛函空間包含中心區的基函數及與其有相互作用的環境區軌道,容納整數個電子,構成大體系的一個相對獨立的子體系,可以在其中進行獨立的量子化學計算。通過計算鑭系氯化物和水合離子的4
  19. Basically like “ adaptive approach ”, the method can control triangulation density with respect to the change of normal curvature of the surface generating a small number of triangular facets, and thiny triangles, degenerate triangles and “ cracks ” in 3d space will not occur, but the speed of the algorithm is higher than that of adaptive one

    該方法基本上可以像「自適應」方法一樣,根據曲面的法曲率變化來控制三角化剖分的密度,生成的三角片數量較少,並且可以避免在三維空間產生狹長的三角形、退化三角形與「裂縫」 ,運行速度明顯比自適應方法快。
  20. 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。
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