條形計算尺 的英文怎麼說

中文拼音 [tiáoxíngsuànchǐ]
條形計算尺 英文
bar-type slide rule
  • : Ⅰ名詞1 (細長的樹枝) twig 2 (條子) slip; strip 3 (分項目的) item; article 4 (層次; 秩序; 條...
  • : Ⅰ動詞1 (計算) count; compute; calculate; number 2 (設想; 打算) plan; plot Ⅱ名詞1 (測量或計算...
  • : Ⅰ動詞1 (計算數目) calculate; reckon; compute; figure 2 (計算進去) include; count 3 (謀劃;計...
  • : 尺名詞[音樂] (中國民族音樂音階上的一級 樂譜上用做記音符號 參看「工尺」) a note of the scale in ...
  • 計算 : 1 (求得未知數) count; compute; calculate; reckon; enumerate 2 (考慮; 籌劃) consideration; pla...
  1. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合試驗件的假設,建立了顆粒碰撞頻率表達式,應用了顆粒數量平衡方程,從而建立了絮凝過程的動力學生長模型,模型結果與試驗數據對比表明,二者趨勢一致,在沒有使用經驗參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和寸分佈的變化過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生長階段,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,得到的模型絮體分維數基本與試驗中的實際絮體相符,在一定程度上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  2. The first steps towards this goal could be to invest in some simple weight scales, a tape measure and perhaps a calculator - the only equipment needed for individuals to establish lifelong oversight of healthful body weight

    公斤之內。達到這個目標的第一步就是投資購買一些簡單的體重,可能的話再買個器,一個人只需要這些設備就可以長期觀察自己的體重,使之處于健康狀態!
  3. Do some necessary calculations and decide on the general scheme of compton back - scattering imaging scanner to the real wall inspection. include the selection of radioactive source, the calculation of compton back - scattering beam, the calculation of the basic condition of finding out the different materials and the determination of some important parameters as well. 3

    其主要內容包括入射源的選擇,散射粒子的理論,發現異物的最低以及系統的一些重要參數的確定,主要包括:放射源的選擇,散射角的確定,后準直器的狀與寸,前準直器的寸,前準直孔的大小,檢測器的種類與型號,檢測器的效率等。
  4. 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線密碼體制的優點及研究現狀;其次研究了橢圓曲線密碼體制的基本理論;第三,分析了橢圓曲線密碼的安全性並介紹了密鑰共享,加密,數字簽名等橢圓曲線密碼體制;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和乘法逆運的快速演法,並對hankerson等人提出的多項式基下的乘法運的快速演法作了改進,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的性能,還對這兩種基表示下的f _ 2m域中元素運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線密碼體制時參考;第五,研究了目前流行的橢圓曲線標量乘法的快速演法,同時改進了固定基點梳法,提高了整個系統的速度,並在實驗的基礎上分析研究了流行演法的優劣;第六,實現了基於f _ 2m的橢圓曲線密碼體制的演法庫,在我們的演法庫中只需稍微改變便能實現基於任意寸的f _ 2m上的ecdh , eces , ecdsa等橢圓曲線密碼體制;第七,實現了兩安全橢圓曲線上的橢圓曲線密碼體制,包括ecdh , eces , ecdsa 。
  5. Drawing piece unfold size is one basic condition under the calculation on coefficient, number of drawing, handbooks or books of press are not given, practice press production, die designer designs drawing die by experience calculation, after testing, according to deformation, state, defect shape of testing blank, shape and unfold size is revising, finally, unfold size and shape of blank are determined, designing period is longer, cost of die and work piece is to raise, economic benefit is to reduce

    拉深件展開寸是拉深可行性分析中拉深系數與拉深次數的前提件,現有沖壓手冊或教材對于復雜拉深件的展開尚未論述。復雜拉深件的沖壓生產中,模具設者憑經驗估拉深可行性,設製造拉深模進行反復試壓,根據試壓件的變狀態,缺陷貌,制定坯料展開寸和狀,周期較長,因而生產成本高,經濟效益不佳。
  6. The object to study in this paper is the electric heat reservoir boiler, which is used to supply heat water and bask for the resident population. the use of the system define the character of the output medium with the lower request on quality and parameter, at the same time, it ask the boiler should has the higher character on the respect of the cost, reliability, economy, and so on. hence, the paper carefully design and study the system for the choice and design of the boiler core heating componet, the lay of the heat exchanger, the working status of the heat reservoir equipment, the adjustment and control mode of to supply heat water. the study work mainly include underside some contents, forexample : 1. to confirm the heat medium parameter to adapt the requirements of the most of the heating equipments and to design the instruction of the boiler and heat reservoir as simple as possible

    圍繞上述原則,本文從電熱鍋爐核心加熱元件的選型及設、換熱面的布置、蓄熱設備的運行工況、供熱的調節方式以及控制方法進行了較細致的研究和,具體研究工作有以下幾個方面: 1 .根據使用要求,確定適用於多數採暖設備的熱介質參數,設在結構型式上盡可能簡單的鍋爐和蓄熱器; 2 .對製造加熱元件電熱管的各種材料進行了對比和分析、在結構寸上進行了仔細的分析和,根據實際使用件給出合理的設,使其具有較高的可靠性和使用壽命; 3 .對不同換熱面布置式進行傳熱分析。
  7. This article reviews the developments of studies in inorganic synthesis and preparative chemistry in vital aspects such as the extreme condition synthesis, soft chemistry, the preparation of specially condensed and aggregated materials, morphology and size modifying growth, defect and valence controlling, combinatorial chemistry, computer - aid design, ideal and biomimetic syntheses

    摘要本文從極端件合成、軟化學合成、特殊凝聚態和聚集態制備、貌與寸修飾、缺陷與價態控制、組合化學合成、機輔助合成、理想合成與生物模擬合成等幾個側面,闡述近年來無機合成與制備化學研究的進展。
  8. Carry on a large amount of experiment and analysings, the result of calculation of designing has been verified, the error of designing and computing has been revised, the physical dimension of the rivet has been confirmed finally. combine the real working condition of the factory the difficulties that the rivet stem and the locking collar are difficult to process are solved, a series of feasible technology schemes are made finally. according to the designing and of the test of the blind rivet, consult the relevant standards of u. s. a., the relevant aviation industrial standards which lay the foundation for the popularizaion and application of the rivet are compiled

    本文通過系統分析及,突破了鉚釘抽鉚成、剪斷環及時被剪斷、芯桿到位及時拉斷等一系列技術難點,確定了設方案,運用有限元方法對機械鎖緊鼓包型抽芯鉚釘進行了強度分析:制定了試驗方案,驗證了設結果,修正了設所造成的誤差,確定了鉚釘的結構寸;結合工廠的實際生產件,解決了釘桿和鎖圈難以加工的困難,制定出?系列可行的工藝方案:根據設及試驗結果,參照美國的相關標準,編制了系列航空工業標準,為機械鎖緊鼓包型抽芯鉚釘的推廣應用打下了基礎。
  9. The sinusoidal gray fringes are simulated by computer and projected on the object by the liquid - crystal light valve in this method, in with the phase - shifting is controlled by computer. then the deformed fringes modulated by object is collected by ccd camera, so optical 3 - d phase measurement for large - scale object can be realized

    ( b )針對目前大寸物體光學位相測量輪廓中存在的問題,提出一種用液晶光閥把模擬正弦分佈及多幅有一定相移量的灰度紋投影到大寸三維物體上,通過控制機在同一位置進行窗口變換,直接實現相移,進行物體的光學位相三維面測量。
  10. Based on the constitutive relationship coupled microstructure evolution, 3d - fe simulation of isothermal forging process of tc6 titanium alloy disc is performed dealing with different deformation temperature, punch velocity and shear factor of friction, effect of process parameters on equivalent strain, equivalent stress and grain size is calculated, and load - displacement curve is calculated

    本文基於微觀組織演變的本構關系模型,對不同變溫度、凸模速度和摩擦件下鈦合金盤的等溫鍛造過程進行了三維數值模擬,研究了變工藝參數對等效應變、等效應力和晶粒寸的影響,了各變件下的位移?載荷曲線。
  11. Abstract : optimum design of individual foundation considering the effect of strength and deformation is discussed in this paper. the optimal mathematical model of determining the bottom surface demention of individual foundation under eccentric load is derived. the optimal solution is decided by method of optimization and the method we select is penalty fonction and complex method. the program of optimum algorithm is comiled and design and drawing of individual foundation is completed. the final results of engineering samples suggest that the cost of material and engineering amount can reduce approximatly 5 % - 6 %. a fair - sized economic efficiency can be received by using optimum method to design foundation

    文摘:筆者討論了獨立基礎在考慮強度和變件下的優化設.導出了確定獨立基礎底面寸的優化數學模型,導出了偏心荷載作用下基礎的高度和底面配筋的公式,求解優化解採用最優化方法的復合法和罰函數法.通過基礎實例和工程實例的表明優化設可以節省材料和工程量5 16 .所以將本文優化方法用於基礎設,會產生較大的經濟效益
  12. As the yardstick changes of crack face is following self - similarity physics law, this paper prosecuted several deep researches on the crack face in rock mass as follows : 1 ) the fractal geometry theory is used to study the characteristic of crack face number in rock mass and a research method about three - dimension fractal distribution to crack face in rock mass was brought forward. we calculate the number of crack when the position of the crack face distribution is random and the crack face ' s slant angle and azimuth angle is certain by numeral experiment, and verify that the crack face number in rock mass comforming three - dimension fractal distribution law is correct

    1 )應用分幾何學理論對裂縫面數量分分佈進行了研究,提出了巖體裂縫面數量的三維分分佈研究方法;在巖體裂縫面隨機分佈和裂縫面分組的情況下,用數值試驗方法,分別各種剖面不同度裂縫跡線數,證明了「巖體裂縫面數量服從三維分分佈規律」這一巖體力學的重要物理結論。
  13. Since diffuser is smaller than workshop, to model detailed diffuser geometry would require millions of grid cells, which in turn would require a large computer capacity

    本文的地下廠房體巨大,而風口寸相對廠房而言很小,描述風口邊界件細節將需要成百萬的網格,所需機內存很大。
  14. With reference to calculation methods of solar radiation within domestic and abroad literature and with the help of our country ' s dem ( with its resolution is 1 km x 1 km ), we build a new model for potential solar radiation calculation combining with pci geomatica ' s platform. in the calculation, hypothesis is that insofar one clear day in more than one year as the biggest value of solar radiation of one day in many years is defined as potential value of daily global solar radiation, we also consider the infection of the slope, aspect and its geometry relations affect on solar radiation. we calculate potential solar radiation which maybe useful for research the distribution of solar energy and build large - scale grid database of our country ' s solar radiation

    本研究試圖在借鑒國內外已有的太陽輻射方法的基礎上,利用全國的1 : 100萬數字高程模型數據( grid大小1km 1km )為數據源,以pcigeomatica為平臺,以全國多年的太陽輻射日觀測數據進行模式驗證,在晴天無雲的理想件下,根據太陽光線與實際地間的幾何關系,研究坡度、坡向等地因子對太陽輻射的影響,探討太陽輻射在復雜地表上的分配規律,力求尋找潛在太陽總輻射合理的方法,為研究太陽輻射時空分佈特徵和建立全國度的太陽輻射柵格氣象數據庫奠定基礎,為大度上的生態學過程研究提供基礎信息。
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