標線密度 的英文怎麼說

中文拼音 [biāoxiàn]
標線密度 英文
reticular density
  • : Ⅰ名詞1 [書面語] (樹梢) treetop; the tip of a tree2 (枝節或表面) symptom; outside appearance; ...
  • : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
  • : Ⅰ名詞1 (秘密) secret 2 [紡織] (密度) density 3 (姓氏) a surname Ⅱ形容詞1 (距離近; 空隙小)...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 標線 : graticule; reticule
  1. The method of the model retrieval breaks down the traditional population density statistics method according to the administrative area boundary and changes to evenly distributed and same size grid units to compute the population density. it enriches the methods to obtain the population density indexes and increases the accurate degree and application fields of the indexes. so, it will benefit to the decision process of the population and economic policy, benefit to the sustainable development of regions

    這種模型反演的方法,突破了傳統的按行政區界統計人口的方法,改為按照均勻分佈、規則大小的格點單元來計算人口,豐富了獲取人口的方法,提高了人口的精確程和應用范圍,將有利於人口、經濟政策的決策過程,有利於區域可持續發展。
  2. Calibration graph obtained by the modified procedure for ddmbac showed good linearity and its correlation coefficient was above 0. 999. the coefficients of variation and average recovery of added ddmbac were up to the mustard. the linear concentration ranges for batch determination of ddmbac were 0. 06 ~ 3. 33mg / l

    利用改進后的方法對ddmbac的測定建立了質量控制體系,其準曲的相關系數大於0 . 999 ,性良好,精和準確均符合檢測要求,性范圍為0 . 06 ~ 3 . 33mg / l 。
  3. Only in recent years, some section has used plc, but the computer control level drops behind. according to the actual problem of production, this paper intent to build a real - time monitored control system for defibrator in mdf based on the advanced control system, which, finally, becomes a sub - system of the whole production

    針對這些情況,本課題旨在利用先進的控制系統的基礎上,建立一個mdf熱磨工段的實時監控系統,使之最終成為中纖維板整條生產全面綜合自動化系統的一個子系統,為構建中纖維板管控一體化的目打下基礎。
  4. The scaling relations of conduction time and opening time with the plasma density, which are computed by a series of simulation results, show that, influence of plasma density on conduction time is greater than opening time. influence of cathode em itted electrons on conduction process, which is found to be more important when initial plasma density is low, is dependent of the initial plasma density. the penetration of a magnetic field into cylindrical middle - density ( 1013 / cm3 ) c + + and h + plasma with uniform and parabolic density profile, are examined with aid of pic simulation

    模擬得到的低( 10 ~ ( 11 ) cm ~ 3 10 ~ ( 13 ) cm ~ 3 )條件下導通和斷路時間與等離子體的定關系曲顯示:對于導通時間的影響遠大於對于斷路時間的影響;陰極電子對于peos導通過程的影響程與初始等離子體有關,初始越大,陰極電子的影響就越小。
  5. Firstly, we generalize and analyze the advantages and present research of elliptic curve cryptography ; secondly, we study the basic theory of the ecc ; thirdly, we illustrate the safety of the ecc and discuss the elliptic curve key agreement scheme, elliptic curve encryption scheme and elliptic curve digital signature algorithm ; fourthly, we study fast algorithms of the multiplication and inversion multiplication of the element of in the underlying finite field f2m whose characteristic is two represented by the two basis of optimal normal basis and polynomial basis. we make improvements to the fast algorithm of the polynomial basis multiplication by hankerson and base on the experiments, we describe the properties and compare the advantages of the multiplication and inversion multiplication of the elements in f2m field under optimal normal bases and polynomial basis. results concluding from the study car be used as references in the realization of the elliptic curve cryptosystem ; fifthly, we overview the current fast algorithm of point multiplication, improve the fix base point comb algorithm, advance the speed of the whole system and remark the advantages and disadvantages of the popular algorithms based upon the experimental datas ; sixthly we realize the algorithm library of elliptic curve cryptography based on the f2m. only change slightly in our algorithm library can we realize the ecdh, eces, ecdsa based onf2m of anysize ; seventhly, we realize the ecc on two secure elliptic curves, including ecdh, eces, ecdsa

    本文首先介紹並分析了橢圓曲碼體制的優點及研究現狀;其次研究了橢圓曲碼體制的基本理論;第三,分析了橢圓曲碼的安全性並介紹了鑰共享,加,數字簽名等橢圓曲碼體制;第四,深入研究了特徵為2的有限域f _ 2m中的元素在多項式基和最優正規基表示下的乘法運算和乘法逆運算的快速演算法,並對hankerson等人提出的多項式基下的乘法運算的快速演算法作了改進,而且在實驗的基礎上不僅分析研究了f _ 2m域中元素在多項式基和最優正規基表示下的乘法和乘法逆運算的性能,還對這兩種基表示下的f _ 2m域中元素運算效率的優劣作了比較和研究,所得的結論可供在實現橢圓曲碼體制時參考;第五,研究了目前流行的計算橢圓曲量乘法的快速演算法,同時改進了固定基點梳形法,提高了整個系統的速,並在實驗的基礎上分析研究了流行演算法的優劣;第六,實現了基於f _ 2m的橢圓曲碼體制的演算法庫,在我們的演算法庫中只需稍微改變便能實現基於任意尺寸的f _ 2m上的ecdh , eces , ecdsa等橢圓曲碼體制;第七,實現了兩條安全橢圓曲上的橢圓曲碼體制,包括ecdh , eces , ecdsa 。
  6. The principles of erasure codes used under binary erasure channels are summarized and erasure codes which belong to standard classes of rs codes are introduced with emphasis on cascaded low - density erasure codes with linear time encoding and erasure recover algorithms. thresholds of regular degree distributions are analyzed. it is shown that low - density erasure codes based on ( d, 2d ) - regular sequences of degree distribution are not close to optimal ( d 3 ). two pares of irregular degree distribution sequences are introduced and a pare of improved right regular sequences of low - density erasure codes are presented, it is testified that the new sequences are asymptotically quasi - optimal. in the meantime, simulations of cascaded low - density erasure codes based on a few types of special sequences of degree distribution available are given, together with performance analyses on these codes

    闡述了應用於刪除通道下的糾刪碼基本原理,介紹了兩類準的rs碼類糾刪碼,重點分析了具有性時間編碼和恢復演算法的漸近好碼?級聯型低糾刪碼,分析了正則分佈的閾值,對正則低校驗碼在刪除通道下的糾錯性能進行了模擬,從理論上證明了基於( d , 2d ) -正則序列的低糾刪碼都不是漸近最優碼( d 3 ) ,同時還分析了非正則低校驗碼的序列設計,基於右邊正則序列提出了一種改進型右邊正則序列,證明了此序列為漸近擬最優的,對基於幾類現有典型分佈序列的級聯型低糾刪碼進行了模擬模擬及性能分析; 3
  7. The main place of innovation of this paper is to grasp the advantage of different algorithms, from different angles and levels improve modular exponentiation algorithm and scalar multiplication algorithm, and achieve new algorithm which can provide reference to the implementation of rsa and ecc, meantime the new algorithm have greater practical value

    本文的創新點在於綜合各種演算法在不同方面的優勢,從不同角和不同層次去改進模冪演算法和量乘演算法,得到的新演算法可供在實現rsa和橢圓曲碼體制時參考,具有較大的實用價值。
  8. By analyzing and comparing the network feature index - non - beeline coefficient. shortcut index. joint degree index, demonstrates the cobweb theory that in the conditions which has the same area. scale and density, round - radiation network has the best traffic efficiency

    基於對路網特性指? ?非直性系數、快捷性指數、連接指數分析比較的基礎上,提出並論證了在同等的路網覆蓋面積、規模和的條件下,環形放射式路網具有最優的交通效率的蛛網理論。
  9. How improving the capability of ict has become more and more an important task, for example, improving spatial resolution and density resolution, reducing scan time, enlarging the size of measure space, improving image quality, etc. moreover the question of the energy spectrum hardening and the photon scattering is one of important bottleneck to restrict the improvement of ict

    如何提高工業ct的性能指,如怎樣進一步提高空間解析解析,減少掃描時間,增大可測工件尺寸,改善圖像質量等等成為了ct界面臨的重要任務。而其中射的能譜硬化和散射問題,又是制約工業ct各項性能指提高的重要瓶頸之一。
  10. Urbanization is a sign of expeditious progress in the human society with characters such as high population, prosperous business, dense buildings, convenient transportation systems and perfect infrastructures

    城市化是人類社會快速進步的志,人口高、經濟繁榮、高樓林立、交通便捷、完善的生命和公用設施系統等。
  11. The study solves engineering problem as follows : ( 1 ) the systematic study on the historical course of xigeda strata deposit and geologic environment includes strata, lithologic characters and constitution et in the liangshan and panzhihua region. the results show that the xichang - panzhihua express way is controlled by the anninghe fault and the xigeda fault, the earthquake frequently happen in the region of pass, the different sedimentation number is more great, they effect the road building, safety in operation and structure belong road ( 2 ) because in some place the xigeda strata is foundation and roadbed, the study on the basic properties of the xigeda strata include density, moisture content plastic and liquid limit graduation. the results show that the xigeda strata is deposition in lake, the main component is mudstone and sandstone, the fine particle is main, it has some viscosity, the moisture content of mudstone is different the it of sandstone, the other property are likeness. the xigeda strata has no dilatation on total, some claystone have low and medium dilatation ; ( 3 ) the study on the basic properties of xigeda filler include the composition of matter the biggest standard dry density, the optimum moisture content the results show that xigeda filler can use as road material, it is well grade filler and admixture filler on essence, its compaction index should change in different place because the property is controlled by mudstone and sandstone that change is great in different place ; ( 4 ) the study on the xigeda filler craft used as express way roadbed, includes suitable thickness, compaction numbers and methods and equipment choice et

    公路沿廣泛分佈有昔格達地層,昔格達地層能否用作高速公路路基填料,國內沒有先例,本論文就是結合導師的科研項目,在非典期間,現場長達5個月的工作,完成了從試驗、現場施工工藝到路堤分層沉降監測等工作,是面對生產實際,認識昔格達地層的性質和其作為地基、路基和填料應用中面臨的問題進行的研究。主要的研究內容有:對攀西地區地層巖性、構造等地質環境和昔格達地層的沉積歷史過程作了系統的分析,研究表明西攀高速公路主要受安寧河斷裂和昔格達斷裂影響,通過地區地震活動頻繁,差異沉降較大,對公路建設、安全運行和沿構築物設計有較大影響;由於昔格達地層在有些路段作為地基、有些作為路基,對其基本性質進行了研究:包括天然、含水量、塑液限、顆粒級配等指的試驗研究。研究成果表明:昔格達地層為湖相沉積,主要為砂巖和泥巖,它以細粒組為主,同時粘粒的存在,使其具有一定粘性。
  12. Standard test methods for linear density of textile fibers

    紡織纖維準測試方法
  13. This dissertation mainly investigate important measure indexes ? inear complexity, k - error linear complexity and period, on the security of stream ciphers, design several fast algorithms for determining the linear complexity and k - error linear complexity of periodic sequences

    本文主要研究流碼安全性重要的量指- -性復雜、 k -錯性復雜和周期等,設計出若干計算周期序列的性復雜和k -錯性復雜的快速演算法,得到如下主要結果: 1
  14. In this paper, first discussed are the corresponding results in highway and dam constructions and the engineering characters of rock - fills are deeply analyzed, especially the relationships between gradation, strength and maximum dry density, long - term stability of fillers including earth - fillers and rock - fillers and some conclusions of use are drawn. by in - situ tests and researches on compacting mechanism of high - filled rock embankments, effecting factors on compaction, construction technology and shock compacting technology, obtained in this paper are the compacting technology of high - filled rock embankment and the optimal parameters of rolling compaction. by deeply research on the theory and methods of quality control of high - filled embankment, settled are the questions as quality detection method and control standard of high - filled rock embankment

    本文首先總結和分析了國內外公路和壩工行業已有的相關成果,深入探討了填石料的工程性質與最大幹、長期穩定性等之間的關系,得到了一些有益的結論;通過現場試驗路堤的試驗和對高填石路堤壓實機理、填石路堤壓實效果影響因素、施工工藝和沖擊壓實技術等研究,解決高填石路堤壓實工藝和最優碾壓參數控制等技術問題;通過深入研究填石路堤壓實質量控制原理和方法,解決高填石路堤壓實質量檢測方法和控制準技術難題;解決高填石路堤沉降觀測技術問題,並根據沉降觀測結果研究高填石路堤地基和路堤沉降變化規律,得到了能預測沉降變化規律的「龔帕斯」成長曲預測模型;根據工程實際,深入研究了邊坡穩定性的影響因素,得到了有益的結論。
  15. In the radioactivity measure of the environment samples, hpge - spectrometer can expediently analyze the species and content of the radionuclide in the environment samples. those demands the detection efficiency corresponding to the different energy y - ray in the various environment samples

    在放射性測量中,採用高純鍺譜儀可以方便地分析環境樣品中放射性核素的種類和含量,但要準確地分析核素含量,需要準確知道各樣品中的各種能量射的探測效率,通常由一定和樣品量的準樣品來得到這一效率。
  16. The results of calculation and evaluation showed that the main factors were the precision of standard curve and the excursion of instrument

    對測量不確定進行計算和評定,結果表明,影響其測量不確定的主要因素是準曲以及儀器漂移。
  17. The results were that the stantard curae and precision showed no difference with the former method, and that methed could reduce work time and enhance work efficient

    其結果不論是準曲、精與準確均與原方法一致,節省了時間,提高了工作效率。
  18. Standard test method for nondestructive assay of special nuclear material in low density scrap and waste by segmented passive gamma - ray scanning

    分段無源射掃描法對低廢料及殘渣中特殊核材料進行無損檢驗的準試驗方法
  19. Since the company began to resrerch and make radiators in 80 ' s last century, domestically advanced production lines have been adopted in the production. we sim at 100 % conformity of heat impedance performance curve with the testing standards stipulated in st2564 - 85 standard book of " profiled material raditors " which is promulgated by ministry of electronic industry of people republec of china. the radiators are matching heat - radiating components for power semiconductors, generally can be applied to fields of large and small power appliances, hi heat current density utensils, whole - set apparatus, electuonics and electrical devices, etc

    本公司自八十年代初研製生產散熱器系列產品以來,採用國內最先進的生產流水,工藝精湛,其熱阻特性曲均按中華人民共和國電子工業部準st2564 - 85 《型材散熱器》規定的檢測方法,百分之百達到設計要求,是功率半導體器件的配套散熱元件,運用於多種大、小功率電器熱流高、整機設備、電子,電器等領域。
  20. Testing physical and chemical characteristics of tow for cigarette - part 1 : total line density

    煙用絲束測定系列準第1部分:絲束
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