球截體 的英文怎麼說
中文拼音 [qiújiétǐ]
球截體
英文
segment of a sphere-
We knew that the isotopic compositions of noble gases observed in space ( like those measured in meteorites and cosmic dust ) were clearly distinct from those found on the earth
我們知道太空中惰性氣體的同位素組成(像在隕石與彗塵中測量到的情形) ,與地球上的截然不同。The raw materials, the composition, the time of milling, the calcining temperature, the different additives, the sintering temperature and the sintering parameters were investigated. the result showed : it was advantaged to obtain high initial permeability mnzn ferrite with stable frequency characteristic using high - purity raw materials ; in order to obtain mnzn ferrite with high properties, we must control strictly the composition ; it could improve the properties of mnzn ferrite by optimizing calcining temperature. the lower calcining temperature made the permeability higher, and the higher calcining temperature could promote the frequency characteristic of permeability ; we chosen the right time of milling according to the requirement of power diameter ; in order to improve the properties of mnzn ferrite, it is necessary to add effective additives. in this dissertation, the influence of bi2o3 、 moo3 、 k2co3 、 co2o3 were investigated ; the sintering temperature, the time of heat - retaining and sintering parameters were the key factors of preparing high permeability mnzn ferrites
研究結果表明:採用高純度的fe2o3有利於獲得高起始磁導率且頻率特性優良的鐵氧體;為了制備所需性能的鐵氧體,需要嚴格控制配方中各種原材料的含量,優化配方;由於粉體活性受預燒條件的影響,所以對不同要求的鐵氧體選擇的預燒條件就不一樣,適當降低預燒溫度有利於獲得較高的起始磁導率,而為了獲得良好的頻率特性可以適當地提高預燒溫度;根據對粉體顆粒粒徑的不同需求,可以選擇不同的球磨時間;而有效的添加劑是改善材料性能的必要條件,本文在添加劑的研究中主要對bi2o3 、 moo3 、 k2co3 、 co2o3的影響分別作了詳細地討論;燒結溫度、保溫時間和燒結氣氛是高磁導率mnzn鐵氧體制備最關鍵的工藝,適宜的燒結工藝可以獲得理想微結構和組成,從而得到高性能的鐵氧體材料;而從材料的微結構上來看,要提高材料的截止頻率,就要適當地細化晶粒、增加晶粒內部的氣孔。Q41f - 10c catena pad fluorine valve, q41f - 10cf catena pad fluorine valve, j41f - 16 pad fluorine end - valve, j44f - 16 angle form pad fluorine end - valve, sj41f - 10c pad fluorine inspect - lens, the connect form is flange, the passing parts of valve - body lumen and valve - cover valve - core etc. are all metal pad fluorine plastic inside, rotproof excellently
Q41f - 10c系列襯氟球閥, q41f - 10cf系列襯氟放料閥, j41f - 16系列襯氟截止閥, j44f - 16系列襯氟角式截止閥, sj41f - 10c襯氟視鏡,連接形式為法蘭式,閥體內腔及閥蓋閥芯等過流部件均為金屬內襯氟塑料,耐腐蝕性能優異。Secondly, the mathematical radiation extinction model of nonspherical particle is developed based on t - matrix method, and a computer program is designed to calculate the extinction cross section, scattering cross section, absorption cross section and scattering phase function of fixed or randomly oriented axially symmetric particle
然後根據t矩陣方法,採用回轉體微粒消光特性的計算模型編制出的相應程序,對固定取向和隨機取向的非球形回轉體微粒的消光截面、散射截面、吸收截面及散射相函數進行了計算。In this paper, we study and analysis the base distribution in human dna sequences. on the basis of the distribution sphere whose radius equal to 1 / 4 by zhang et al. expounded, with the method of plane mapping figure studying 6000 human dna sequences, and according to the figure of sierpinski gasket ' s patch and the brillouin zones of the face - centered cube, we obtain two new distribution figures, one is the frustum - octahedron, another is the regular - octahedron
我們在zhangetal .提出的人類dna序列的堿基分佈為半徑是1 / 4球分佈的基礎上,用平面投影圖的方法研究和分析了6000組人類dna序列的數據,並且根據塞爾賓斯基鋪墊的補形和面心立方的布里淵區圖形提出了兩種新的分布圖,一種是正八面體,另一種是截角八面體(十四面體) 。Manufacturer of poly - pipe connections for potable water supply lines, pipe union and foot and check valves. based in canada
-以閘閥球閥蝶閥截止閥止回閥旋塞閥和平板閥等七大系列為主導的閥門產品體系。Through the study and analysis conclude as follows : in human dna sequences, if the distinction of the number of the four bases is very small, they can distribute in a sphere whose radius equal to 1 / 4 ; if the distinction of them is comparative large, they can distribute between the sphere and the frustum - octahedron ; if one is 0 in them, they can distribute between the frustum - octahedron and regular - octahedron ; if the distinction of them is especial large, they may distribute in the outer of the regular - octahedron
通過研究和分析得到結論為:在人類dna序列中,如果四個堿基的數目相差很小時,它們可能分佈在半徑為1 / 4的球內;如果相差比較大時,它們可能分佈在這個球和截角八面體之間;如果在四個堿基數目中有一個為零時,那麼它們有可能分佈在截角八面體和正八面體之間;如果相差的特別大,甚至有可能落在那個正八面體的外部。In the second part, we investigate the compact submanifolds m with the parallel isoperimetric section in the real space forms rm ( c ) and prove that if there exists a parallel isoperimetric section on m, and the sectional curvature of m is always greater than zero, then m is contained in a hyper - sphere ; and get that the gauss curvature of the compact surfaces m with constant mean curvature in constant curvature space r4 ( c ) is always greater than zero, then m is a totally geodesic surface or a sphere, where an isoperimetric on m means a unit normal vector field defined globally on m with m1 ( ) = constant
( 2 )研究了實空間形式r ~ m ( c )中具有平行等參截面的緊致子流形m ,證明了具有一平行等參截面的子流形m ,如果m的截面曲率恆正,則m包含在r ~ m ( c )的一個超球面內;對于常曲率空間及r ~ 4 ( c )中具有常平均曲率的緊致曲面m ,如果m的高斯曲率處處大於零,則m或為r ~ m ( c )中的全測地曲面或為一球面。這里m上的等參截面是m上整體定義的單位法向量場,使得m關於它的平均曲率m _ 1 ( )是常數。Individual action is action of one player including shooting, intercepting ball and passing ball, which is completed according to some commands that server provides
所謂的個體動作指的是由服務器提供的若干個動作命令組合起來實現的一個足球運動員的實際動作,比如射門、截球、傳球等。A sport played by volleying a shuttlecock back and forth over a high, narrow net by means of a light, long - handled racket
羽毛球:一種體育運動,在一定高度、寬度的網子范圍內用一隻輕的長柄球拍前後截擊羽毛球In order to fully develop the theory of squeezed branch piles, in particular, the justification of its superior performance in terms of the bearing capacity and sinking displacement, we have derived the analytical formulas of the axial load and the strain at arbitrary depth ; based on existing static loading test results and research on belled pile, together with the analysis of on - site testing data, we have applied the expand theory on sphere holes to the computation of radial stress of squeezed branch piles under hole expansion ; taking the oil pressure of hole expansion in to account, we have find the a branch force under certain hole pressures, hence we can estimate the maximum bearing capacity of single piles ; we have introduced the experiential formulas for the bearing capacity of squeezed branch piles based on its stress characteristic and pile testing data ; we have also done numerical simulations of squeezed branch piles utilizing finite element method software ansys ; we have matched the simulation res ults with those of on - site basic load experiments, regenerating the distributions of stress fields and strain fields of squeezed branch piles, and from those distributions, we can determine the optimal distances between plates and piles
為了完善支盤樁的設計理論,探求支盤樁高承載力和低沉降量的內涵,本文推導出了支盤樁任意深度的截面荷載以及位移隨深度變化的理論公式;基於已有的靜載試驗成果及有關擴底樁的研究成果,從對現場測試數據的分析,將球形孔擴張理論引入到支盤樁擴孔時徑向應力的計算,考慮到擴孔時的油壓數據,求得某一孔壓下的支盤力,據此估算單樁極限承載力;同時根據對支盤樁的受力特點和試樁數據的分析,提出了支盤樁承載力計算的經驗公式;用有限元分析的方法,利用大型有限元分析軟體ansys對支盤樁進行數值模擬,並將模擬結果同現場的靜載試驗結果進行對比,再現了支盤樁在荷載作用下土中應力場和位移場的變化,根據應力場和位移場的變化范圍,指出最佳盤間距和樁間距;為支盤樁的設計和施工提供了一個可量化的設計依據。Birth date : 22 september 1976 height : 183 cm weight : 77 kg position : fw current club : internazionale int l goals : 45 as of 30 june 2002 int l caps : 64 as of 30 june 2002 first int l cap : argentina 23 march 1994 ronaldo is one of the most talented soccer players in the world today. his sublime skills matched by his blistering speed is one heck of a combination
出生日期: 1976年9月22日身高: 183 cm體重: 77 kg位置: fw現效力俱樂部: internazionale ita國家隊進球數: 45截止到2002年6月30日國家隊出場次數: 64截止到2002年6月30日國家隊首次出場: vs阿根廷1994年3月23日他外表不凡長相超常,生長在桑巴的國度,熏陶于先輩的輝煌。Ronaldo biography : birth date : 22 september 1976 height : 183 cm weight : 77 kg position : fw current club : internazionale int l goals : 45 as of 30 june 2002 int l caps : 64 as of 30 june 2002 first int l cap : argentina 23 march 1994 ronaldo is one of the most talented soccer players in the world today. his sublime skills matched by his blistering speed is one heck of a combination
出生日期: 1976年9月22日身高: 183 cm體重: 77 kg位置: fw現效力俱樂部: internazionale ita國家隊進球數: 45截止到2002年6月30日國家隊出場次數: 64截止到2002年6月30日國家隊首次出場: vs阿根廷1994年3月23日他外表不凡長相超常,生長在桑巴的國度,熏陶于先輩的輝煌。分享友人