比重底 的英文怎麼說

中文拼音 [bǐzhòngde]
比重底 英文
double bottom
  • 比 : Ⅰ動詞1 （比較; 較量高下、 長短、距離、好壞等） compare; compete; contrast; match; emulate 2 （比...
  • 重 : 重Ⅰ名詞（重量; 分量） weight Ⅱ動詞（重視） lay [place put] stress on; place value upon; attach im...
  • 底 : 底助詞（用在定語后, 表示定語和中心詞之間是領屬關系, 現在多寫作「的」）
  • 比重 : 1 （部分在整體中所佔的分量; 比值） proportion 2 [物理學] （物體重量和其體積的比值） specific grav...
  1. Deep gold intensity, very strong purplish - bluish base contrast and some golden head features are the strong selling points of this brooder

    這尾種魚的最大賣點是它的重金質，強烈的紫藍底色對比及它的金頭特徵。
  2. In the course of working, ， the plow will make use of the shuttling method so that it can dig alternately either on the left or on the right. compared to the unilateral plow, it can improve the productivity because it can help leave off the soil 、 take from the consumed energy and reduce the empty journey. to meet the requests above, we will use a remote cylinder with both a small cubage and double functions, approximately designing the plow to be columniform and symmetric. after the experiment for a period in the field, we found that the most frayed areas had happened at the places of both plow shank and share and at the same time the base of the remote cylinder had ruptured suddenly

    與單向犁相比，其優點在於：耕地無開、閉壟，地表平整，降低了耕后整地的能量消耗，減少了地頭的空行程，因而大大提高班次生產率。為了滿足犁體梭式作業的要求，我們採用了一隻小容積雙作用的液壓油缸；同時對犁壁曲面的形狀採用了近似圓柱形的對稱設計。但經過一段時間的田間試驗，我們發現：該犁犁胸部分的犁脛和犁鏵上的犁尖在工作中磨損較為嚴重；主犁梁和油缸缸體的連接部分（即油缸底座）突然發生了斷裂，造成整個犁體無法正常工作。
  3. The main contributions of this dissertation include : firstly, deeply research on underlying techniques of pki system, emphatically analyze dissymmetrical public - key cryptography ecc and compare it with other cryptography techniques

    本文首先對pki體系的底層技術進行深入研究，重點分析了非對稱密碼橢圓曲線密碼體制，並將它與其他密碼技術進行了比較。
  4. We find that the petrology characteristic of all the samples have no characteristic of meteoric water such as geopetal structure, infiltrative sand, ( uniform cement and gravitational cement on base of the research of the dolomite in the regions. on the dot diagram of combination of mgco3 ( mol % ) and sr, the dot are all close to the line of seawater whether they are microlite - crystalline penecontemporaneous dolostone or diagenetic dolostone of various crystals. the 87sr / 86sr value of dolostone or matrix is less than the one of sparry calcite in cave or vein, and close to the value of seawater

    通過本區白雲巖的研究發現：已有的白雲巖樣品的巖石學特徵沒有顯示出如示底構造、滲濾沙、新月型膠結物和重力膠結物等大氣淡水作用的特徵；在白雲石mgco _ 3mol百分數和白雲石sr含量的投點圖中，無論是準同生成因的泥?微晶白雲巖，還是粉?細晶（或中晶，或細晶以上的不等晶）的成巖白雲巖，均投在海水線的附近；白雲巖（或基質）的~ （ 87 ） sr / ~ （ 86 ） sr比值顯著低於與孔洞或脈中充填的亮晶方解石，且與海水值十分接近， ~ （ 13 ） c和~ （ 18 ） o值顯著高於孔洞或脈中充填的亮晶方解石，也偏向于海水值； mn含量則顯著低於孔洞或脈中充填的亮晶方解石。
  5. The paper is based on innumerable practical heavy - load road data, deliberate heavy - load standard in detail through theoretical arithmetic, and bring heavy - load standard about cement concrete pavement and asphalt concrete pavement separately ; in the meantime, through a large quantity of cement concrete pavement stress calculation, the paper puts forward relation expression between load on concrete board and stress level under board ; meanwhile, the paper puts forward traffic classification about cement concrete pavement and asphalt concrete pavement ; through bearing board testing on each structure sheaf the paper finds the material modulus gets modified ; through comparing position equivalent rebound modulus to theoretical equivalent rebound modulus, the paper points out limitation of nomograph in course of cement concrete pavement design, whereby, puts forward modifier formulas about theoretical equivalent modulus

    本文以大量的重載道路資料為主，從實際出發，結合理論計算，對重載標準進行了詳細的討論，分別給出了水泥混凝土路面與瀝青混凝土路面的重載標準了；同時，通過大量的水泥混凝土板底應力計算，推導出了混凝土面板荷載與板底應力水平的關系式；給出了水泥混凝土路面與瀝青混凝土路面的交通分級；通過對試驗路各結構層進行承載板測試，發現現有材料模量較以前有了明顯的提高；對比現場實測的當量回彈模量與理論當量回彈模量，指出現有水泥路面設計中的諾謨圖不能完全符合現有道路材料，從而提出了對理論模量的修正公式。
  6. The most important feather in this design is that the number of motors have controlled only in two and de - scend the motors on the base. ( one motor used for turn motion of the base, whereby maked the manipulator motion in throughout space. another motor used to drive the manus ) excepted for adopped synchronization bell which have light weight and accu - rate gear ratio to reliefed relatively the weight of manipulator ' s device

    在本設計中除了採用材質輕而又傳動比準確的同步帶傳動可以相對減輕手臂傳動機構的重量之外，最主要的特點足將電機數量控制在兩臺（一臺用於底座的回轉運動，從而實現機械手在整個空間的運動；另一臺用於驅動手臂的運動）並將電機下置於底座。
  7. In this paper, the main research works are as follows : 1 ) survey and analysis previous work in auv navigation and summarize : as the cumulate error, the dead - reckoning and inertial navigation systems ca n ' t be used without other modified system ; the acoustic navigation system is used only in small range, and is very expensive. 2 ) two important approaches in geophysical navigation techniques are summarized, one is terrain contour based navigation, this approach is investigated keystone today ; the other is image based navigation, due to no perfect image sensors and image seabed map, this approach has seldom been practised. 3 ) two important terrain contour based navigation algorithms has been applied to auv, one is match algorithm - based terrain contour match ( tercom ) ; the other is kalman filter - based sandia inertia terrain - aided navigation ( sitan )

    主要研究內容包括：一、總結分析了當前水下導航的常用方法和不足之處，指出基於航位推算的導航方法，存在著最大的問題就是導航誤差的積累問題，如果沒有修正系統，這種方法很難滿足使用要求；其次指出基於聲學的導航方法，造價昂貴，導航范圍有限，難以滿足自主水下航行器大范圍導航的需求；二、總結了當前水下地形輔助導航的主要技術路線，一是基於地形高程的匹配方法，這是當前研究的重點；二是基於地形圖像的匹配方法，由於缺乏良好的圖像傳感器，和可用的海底圖像地圖，目前這種方法還有待研究發展；三、將兩種地形高程匹配的常用方法應用到自主水下航行器上：以相關演算法為前提的地形輪廓匹配（ tercom ）方法和以卡爾曼濾波為基礎的桑迪亞慣性地形輔助導航（ sitan ）方法，前者演算法簡單可靠，但是導航精度不高，後者雖然精度比較高，但存在著演算法較為復雜、有可能發散和出現奇異值等問題。
  8. Although eclipsed by events in normandy, its importance and its difficulties should not be underrated.

    與進攻諾曼底的計劃相比，它雖然大為遜色，但是它的重要性和艱巨性卻不應低估。
  9. The paper refer to the two oil pollution compensation regimes, one is established by the 1969 international convention on civil liability for oil pollution damage and the 1971 international convention on the establishment of an international fund for compensation for oil pollution damage, another is established by the oil pollution act of 1990 of america, combine with the oil pollution compensation cases in recent years, introduce the present situation of oil pollution compensation in our country, discuss several problems in practice of oil pollution compensation, such as the scope of oil pollution compensation, the claimant of oil pollution compensation, the responsible party and liability of oil pollution compensation, the evidence of oil pollution damage case, the limits on liability of oil pollution compensation, present that our country would draft the oil pollution compensation law according to the principles of the oil pollution act of 1990 of america and establish the complete oil pollution compensation regime, which the responsible party and the user of oil joint compensa te the oil pollution damage, expect to completely settle the problems of oil pollution compensation

    本文比較《 69民事責任公約》 、 《 71基金公約》及其議定書和美國《 1990年油污法》建立的兩套油污損害賠償的法律制度，結合近年來油污損害賠償的案例，介紹了我國油污損害賠償的現狀，並就油污染損害賠償實踐中的油污損害賠償范圍、油污損害賠償的索賠主體、油污損害賠償主體和責任、油污損害案件的證據問題、油污損害賠償的責任限制幾個具體法律問題展開討論，提出我國可以重點參照美國《 1990年油污法》制定專門的《油污損害賠償法》 ，建立由污染責任人和油類受益人共同賠償的完整油污損害賠償制度，以期徹底解決油污損害賠償的問題。
  10. The incident wave height h1 / 3 is in the range from 0. 1m to 0. 25m, and the peak period tp in the range from 1. 0s to 2. 0s. the ratio of s / h1 / 3, which refers to the subface level of wharf deck ( s ) to the incident wave height ( h1 / 3 ), is between - 0. 1 and 0. 7. three different shore connecting types : open - piled, permeable slope with armored 1ayer of dolosse b locks and impermeable slope with armored layer of concrete plate, are set in the experiment for the research on the effects of boundary condition with different shore connecting types on the wave impact

    本文的物理模型試驗在大連理工大學海岸和近海工程國家重點實驗室的大波流水槽中進行，試驗中選用的隨機波靶譜為改進的jonswap譜，入射波波高h _ （ 1 / 3 ）范圍為0 . 1m 0 . 25m ，譜峰周期t _ p范圍為1 . 0s 2 . 0s ，碼頭面板的相對凈空（碼頭面板底面距離靜水面的距離s與入射波波高h _ （ 1 / 3 ）的比值）范圍為- 0 . 1 0 . 7 ，其中s / h _ （ 1 / 3 ）為負值時表示碼頭面板底面位於靜水面以下。
  11. The recombinants were constructed by transforming ppic9 a - xynb into p. pastoris gs115. the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p. pastoris. in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity. the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1. xynbb was gotten by deglycasylation of xynba, whose molecule weight returned to 23kd. we comparised the enzymatic properties of xynba expressed in p. pastoris, xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph, the optimal ph of xynb and xynba were both 5. 2, the optimal ph of xynbb was 5. 0 ; the optimal temperature of xynb and xynba were both 60 c, while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883. 88iu / mg and 832. 5hu / mg respectively, which were both lower than 2814. 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21. 56 ( g / kg ) and 20. 87 ( g / kg ), while the km value of xynbb was 27. 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg. min and 5329umol / mg. min respectively which were lower than 27623 umol / mg. min of xynb ; additionally all of the three enzymes did not display cellulase activity. they all had well resistance to pepsion and trypsin, and were not sensitive to metal iron, surface active agent and chelating agent. the analysis of different xylans enzymatic hydrolysate revealed : by xynba, that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose, which account for 68. 43 % and 16. 50 % respectively, additionally there was 11. 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose, which account for 81. 78 % and 11. 55 %. the result indicated that this xylanase was a kind of 1, 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides

    進一步對xynba進行了脫糖基化處理得到xynbb ，其分子量恢復到23kd ，證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈黴菌a1所產原酶xynb之間酶學性質的比較發現：三種酶的最適ph差異不大， xynb和xynba均為5 . 2 ， xynbb為5 . 0 ； xynb和xynba的最適溫度均為60 ， xynbb降為50 ：在耐熱性上， xynba由於糖基化作用熱穩定性明顯高於未糖基化的xynb和xynbb ； xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ，明顯低於原酶的比活2814 . 45iu mg ； xynb和xynba的km值相當，分別為21 . 56 （ g kg ）和20 . 87 （ g kg ） ，而xynbb的km值較大為27 . 10 （ g kg ） ； xynba和xynbb的vmax相差不大，分別為4568 mol mg ? min和5329 mol mg ? min ，明顯低於xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性，對胃蛋白酶和胰蛋白酶有很好的抗性，且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現：以樺木木聚糖為底物時，酶解產物主要為木三糖和木四糖，含量分別為68 . 43和16 . 50 ，另外還含有11 . 79的木二糖；以玉米芯木聚糖為底物時，酶解產物主要為木二糖和木三糖，含量分別為81 . 78和11 . 55 。
  12. The sage, gno and gallex all used gallium for the detection. another one was the super - kamiokande which was 30 times larger than kamiokande ii and used highly purified water. the sudbury neutrino observatory, built at a depth of 2 km in ontario in canada, used heavy water d

    各個不同的測量太陽中微子實驗室在八九十年代如雨後春筍般興建，例如利用鎵原素的sage gno及gallex ，比神崗2號大30倍，利用高度純水的超級神網號，以及位於加拿大安大略省地底2公里，利用重水的sudbury neutrino observatory 。
  13. Its hysteretic curve is plumper, its ductility coefficient and energy dissipation capacity have been improved remarkably. the inclined staff of the steel bar truss has a restraining faction to the development of the crack, and the phenomena is that there has more crak and larger distributing area on the shear wall, which is an important token of the improved seismic capacity. concealed steel bar truss has the faction of increasing the height of plastic hinge area, which is another important token of

    研究結果表明:內藏鋼桁架高剪力墻與普通高剪力墻相比:屈服荷載和極限荷載均比顯著提高;屈服剛度明顯提高;其滯回環相對飽滿，延性系數及耗能能力顯著提高;內藏鋼桁架高剪力墻，其鋼桁架斜桿對裂縫發展有控製作用，現象是墻體上的裂縫較多、分佈域較廣，這是抗震耗能能力增強的重要表徵;內藏鋼桁架高剪力墻有增大底部塑性耗能區域的作用，這是抗震耗能能力增強的另一重要表徵;內藏鋼桁架還有顯著提高抵抗剪力墻基地剪切滑移能力的作用。
  14. In the experiments, we also found the - sources flow rate, temperate of the substrates, annealing time and annealing temperature have an important infuence to epitaxial quality of the films

    在實驗過程中，我們也發現-族源氣體的流量比、襯底溫度、退火時間和退火溫度對外延晶體的生長質量也有重要的影響。
  15. Organic bentonite - yh - 958 introduction : yh - 958 organic bentonite is the self - active organic bentonite. it can be added in every step of compounding paint, it no needs pre - gel or polar activator, it has perfect rheological, anti - settling and sag prevention. besides the characters of the other yh bentonite, yh - 958 function well in high gravity, low viscosity pigment solvent system

    Yh - 958和978產品是國內首創的自活化有機膨潤土，可在調漆的任何階段加入，無需預凝膠和極性活化劑，分散細度可在20um以下，可用於面漆和底漆，提供油漆體系理想的流變性能，控制沉降和流掛，除具備同類產品的特點以外， yh - 958在較少添加量，低粘度的高比重顏料體系中形成微弱的絮凝結構，防止顏料沉結
  16. The dissertation mainly focuses on variation of the structure of a - si : h as functions of the dilution ratio of h2 / sih4, substrate temperature and substrate position at low microwave power

    在低微波功率下，本論文著重研究了h2 sih4稀釋比、襯底溫度和襯底位置對a - si ： h薄膜結構的影響。
  17. First, analyzing the distribution in three industries. < wp = 6 > by the end of 2000, in the total amount of fdi to be utilized through the signed agreements and contracts, the amount of the first industry, the second industry and the third industry is 12. 31 billion, 411. 53 billion and 252. 25billion, the percent of them is 1. 8 %, 60. 9 % and 37. 3 % respectively

    首先，分析了我國外商直接投資在三大產業的分佈情況，截止到2000年年底，我國累計吸引的外商直接投資合同金額中，第一產業、第二產業和第三產業分別為123 . 1億美元、 4115 . 3億美元和2522 . 5億美元，所佔比重分別為1 . 8 % 、 60 . 9 %和37 . 3 % 。
  18. Up to the end of june 2001, the project number, contractual value and actually utilized value of fdi in the west accounted for 7. 3 %, 6 % and 5. 3 % of the national total

    截至2001年6月底，西部地區吸收外商直接投資的項目數、合同外資金額和實際使用外資金額，在全國總量中所佔比重分別為7 . 3 % 、 6 %和5 . 3 % 。
  19. The ratio of mobile group data users among all mobile telephone users increased from the 18. 0 % measured during the end of last year to 26. 4 %

    移動分組數據用戶在移動電話用戶中所佔比重從去年底的18 . 0 %上升到26 . 4 % 。
  20. During one of these engagements, type hierarchies played a significant role in the solution, making us recognize that top - down development has some advantages over bottom - up development when inheritance is required

    在這些約定中，類型層次在解決方案中扮演了一個非常重要的角色，它使我們認識到當需要繼承時，自頂向下開發要比自底向上開發更有優越性。
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