寬度系數 的英文怎麼說

中文拼音 [kuānshǔ]
寬度系數 英文
spread factor
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • : 系動詞(打結; 扣) tie; fasten; do up; button up
  • : 數副詞(屢次) frequently; repeatedly
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Form. taxus chinensis var. mairei is protecting plant in the first class, which is a precious and endangering plant in china in this paper, the quantitative characterics of form. taxus chinensis vsr. mairei population including age structure, spatial distribution pattern, growth dynamics of tree basal area, niche characterics, fractal dimension and competition between specises were studied using methods of mathematics ecology from the angle of population ecology of form. taxus chinensis var. mairei, then the prent state and the endangering causes were analysed. this research offers gist to protecting and enlarging the crude resourse of form. taxus chinensis vsr. mairei population, afforesting plantation and sustainable utilize for us

    本文從南方紅豆杉種群生態學的角、主要應用學生態學的方法探討南方紅豆杉種群的量特徵,包括南方紅豆杉種群年齡結構、種群空間格局(探討分佈格局動態規律與生境相互關) 、不同立地條件下種群優勢增長趨勢、生態位、生態位相似比例、生態位重疊、空間占據能力及種間競爭等,分析其目前現狀及瀕危原因,期望為南方紅豆杉野生資源的保護和擴大、營造人工林及可持續利用提供理論基礎,也為瀕危植物種群生態學的研究提供參考。
  2. But the seebeck coefficient was reduced by pd - substituted because of the interdict band width was reduced

    Pd的取代也同時使zrnisn基化合物的禁帶減小,降低了體的seebeck
  3. The studies indicate that different content of pyrophyllite and dolomite can cause the following three cases : ( 1 ) making the refractory point decrease linearly and, to some extent, influencing the microstructure and properties of sintered body ; ( 2 ) acceleratingmullite formation during sintering, reducing thermal expansion coefficient of bond, reinforcing the matching nature and improving the flexural strength and shock strength ; ( 3 ) preventing sic grinding tool from generating black core, expanding suitable sintering temperature range of sic grinding tool

    同時,也不同程地影響了磨具燒結體的微觀結構和性能; ( 2 )可促進在燒結過程中莫來石的形成,降低結合劑的熱膨脹,加強了結合劑與磨料的匹配性,提高了磨具的抗折強和抗沖擊強; ( 3 )在一定溫范圍內還可防止碳化硅磨具出現黑心現象,拓了碳化硅磨具的燒結溫適應范圍。
  4. On the basis of this, the paper makes a great deal of calculation and analysis in this part, different parameters " effect and stress gradient are included. local buckling coefficient and the efficient width calculated formula are provided and look forward to take a reference to the redaction of the specification

    本文對此內容進行了較為深入的研究,考慮了多個參的影響,對各種應力比作用下的楔形腹板的屈曲及屈曲后強進行了計算分析,得出了考慮翼緣相關作用的楔形腹板屈曲及有效寬度系數的計算公式,以期為規范的修訂提供參考。
  5. Simulator tests indicates the speed ; wave ; angle between ship and wave are main factors of the sinkage. difference factors given difference sinkage with simulator tests. 3. the date of width ; depth are two important factors of channel design, the relationship between width to depth is speed

    ( 3 )航道和航道深的關,聯結這二者關是航速,航道和航道深是決定航道參的二個重要因素,並相互存在著一定的關
  6. Through the analysis we found that the effect will become more obviously with the increase of thickness or width of superstratum and the decrease of the coefficient of foundation bed ; ( 3 ) anisotropy and nonlinear elastic f. e. m. model has been established and the effect of stress dispersion in compound two - layer foundation was analyzed on the base of the model. from the analysis we can conclude that the coefficient of subsidiary stress dispersion will amplify with the increase of thickness or width or stiffness of back - up coat ; ( 4 ) the formula which can be used in conventional calculation has been deduced for calculating the coefficient of subsidiary stress dispersion and it also has been affirmed to be reasonable through the checking calculation ; the whole theory of compound two - layer foundation has been brought forward in this paper and it ' ll enrich the theory of composite foundation

    針對以上問題本文做了以下一些工作並得到若干結論: ( 1 )提出了「復合雙層地基」的概念,並通過工程實例證明此概念的提出有其合理性和必要性; ( 2 )用彈性地基梁理論證實了復合雙層地基確有應力擴散效應,且擴散效應隨上覆硬層厚、剛的增加而增大,隨下臥層基床的增大而減小; ( 3 )建立了非線彈性、各向異性有限元模型,並以此為基礎分析了復合雙層地基的應力擴散效應,得到附加應力隨加固層厚、剛的增加而增大的結論; ( 4 )推導了可用於常規計算的復合雙層地基應力擴散公式,並代入工程實例進行了驗證。
  7. And the resemblance is pointed out between continuous wavelet transform ( cwt ) and waf. in the course of computing waf, the scaling replica is very important. based on the properties of cwt, three approaches have been proposed for the scaling of a wavelet that has no analytic form

    詳細闡述了帶信號及統的三個條件、統的回波模型和帶模糊的概念,指出了連續小波變換( cwt )與帶模糊的驚人相似之處。
  8. This thesis was divided into eight chapters, and the main results and innovations obtained here can be summarized as follows : ( 1 ) the physics model of tsrs in frequency conversion crystals has been built up firstly. based on quantum - mechanical viewpoints and the following physical processes and parameters : the two - photo interaction of light with matter, paraxial diffraction of stokes, langevin noise sources, reflection at the faces and the edges of crystals, gain coefficient, beam aperture, pulse width and fluence of 3, the physics model of tsrs in kdp and kdp crystals acting as high - fluence frequency convector and the paraxial operator maxwell - bloch - langevin equations have been built up

    全文共分八章,取得的主要成果及創新點如下: ( 1 )首次建立了諧波轉換晶體的tsrs物理模型本文根據量子力學原理,在考慮如下物理過程和參量的基礎上:光與物質的雙光子相互作用; stokes光的傍軸衍射; langevin (郎茲萬)噪聲源;晶體表面反射和端面反射;增益、光束口徑、脈和三倍頻光能量密,推導出高通量激光在kdp和kd ~ * p諧波轉換晶體中的tsrs物理模型和空間上的近軸算符maxwell - bloch - langevin方程組。
  9. Based on the design principle of the lapel collar, a mathematics model of the relationship between lapel ease, collar width and gradient data is established and its feasibility is verified by experiments

    從翻駁領設計原理出發,推導建立了翻領松量、翻領與倒伏量關學模型,並通過實驗驗證了模型的可行性。
  10. The numerical simulation equations of the border curves in term of and as well as the matching rules and the frequency dependence of microwave electromagnetic parameters of a broad - band homogeneous absorbing coating with a finite value of reflection loss are available. these results pointed out the direction to develop rams ". according to the radar - absorbing model, the optimized design of rams with thin - layer, light - weight, broadband and strong - absorbing is available by the simple genetic algorithms, which can effectively conduct the research work of rams to the detail. small but completely, the electromagnetic parameter ' s databases of rams that based on actual microwave absorbers have been set up, the object function has been constructed which conform to the involved goals, the adaptive coding measure is taken which extends the coding length dynamically adapting to the condition of the number of actual absorbers or the precision of thickness and absorber - volume - percentage, the decoding technique is initiated which satisfies light - weight and strong - absorbing as well as thin - layer and broadband by adopting of tracing variable restricting conditions dynamically to control total thickness. when decoding, the variable restricting conditions of thickness are dynamically traced, so gain the radar absorbing coatings of light - weight multiple - layer single - ingredient. similary, of thickness and absorber - volume - percentage, of light - weight multiple - layer multiple - ingredient. also, the rams ' demand to radar - absorb performance as frequency is met making use of the penalty function

    作為遺傳演算法的具體實施:根據本實驗室近來研製的吸波材料,建立了吸波材料的相關據庫;構造了能真實體現「薄、輕、、強」優化目標的目標函;根據材料的實際量以及塗層厚要求、吸收劑體積分要求,建立了能動態擴展相應碼長的自適應編碼方法;首創了通過動態跟蹤變量的約束條件來控制塗層總厚的解碼技術,以此實現了在不弱化頻、高強的吸波性能目標的同時,兼顧到薄層、輕質的使用性能要求;在解碼時通過動態跟蹤厚變量的約束條件,實現了多層單組分吸波塗層對重量輕的要求;通過動態跟蹤厚變量的約束條件和吸收劑體積分的約束條件,實現了多層多組分吸波塗層對重量輕的要求;使用權重變化法,實現了吸波塗層的分頻段吸波性能要求。
  11. Furthermore, this dissertation also gives a comprehensive analysis and comparison to the torque ripple factor, torque - current ratio and other aspects for pseudo - sinusoidal emf bldcm drived by 120 conduction mode, 180 conduction mode and self - synchronous svpwm mode respectively. the simulation and the experimental results indicate that self - synchronous svpwm method is more effective for minimizing the torque ripple without any expense of the torque - current ratio when the crest width of the back - emf waveform is less than 107 electrical angles

    對準正弦波反電動勢無刷直流電動機在120導通方式、 180導通方式和自同步svpwm三種控制方式下的轉矩脈動、轉矩電流比等方面進行了全面的分析與比較,模擬研究和實驗結果表明,當反電動勢的平頂小於107電角時,採用自同步svpwm控制方法可以在不損失轉矩電流比的基礎上,更有效地抑制電磁轉矩脈動。
  12. On the base of above it, this paper discuss the synthesis of optimum distributed arrays by nonuniform spacing in the sense of dolph - chebyshev. having derived the equations of optimum element distribution, we analyze the exponentially spaced array, which are optimum when the elements are isotropic and equally weighted, and the array by general raised cosine function. the formulate for estimating the sidelobe envelope, beamwidth of the array pattern and clean region width are obtained

    推導了最佳陣元分佈方程,分別對陣元無方向性和等加權時的最佳分散式陣列? ?指間隔陣列和採用廣義升餘弦加權的最佳分散式陣列進行了分析,推導了天線方向圖旁瓣包絡、波束,干凈掃描區的估計公式,給出了近軸旁瓣電平與陣列參的關
  13. This processing line is composed of two sszym 1500a straight line double pencil edgers, with 90transfer worktable. which adopts plc control system sets processing parameters via interface to control width and speed, double screw rod and double straight line glide transmission, guarantee the active briges parallel moving precision, can grind 3 8mm thickness flat edge and pencil edge. this machine structure was designed tightly, function stabilized with high efficiency. it is mainly suit for large batch industrial glass which does deep process and production, be matched with glue printing steel etc. production line. this product is a master work with firenew design by our company, it is another contributisn for chinese glass double edger series

    採用plc控制統通過界面設定參,控制加工的和速,雙絲桿和雙直線導軌傳動,保證活動橋的平行移動精,適用與加工3 8mm的小規格玻璃的平邊和圓邊。該機設計結構緊湊,性能穩定可靠,生產效率高。主要適應大批量工業玻璃深加工生產可以與夾膠印花鋼化等生產線配套使用。
  14. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點,將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區,並給出了各區的經驗公式.根據灘槽交互區垂線流速分佈的變化特點,提出了附加尾流函的對流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上,對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析,提出了反映灘槽水流動量交換強的橫向渦量粘性及橫向擴散的表達式,得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解,並與實測資料吻合較好
  15. It is shown that the fgb and sgb passing through a paraxial abcd system demonstrate similar irradiance profile at the positions of the equal generalized fresnel number. but the fgb and sgb passing through a paraxial abcd optical system having spherically aberrated lens do not demonstrate similar irradiance profile at the positions of the equal generalized fresnel number. the nearly same irradiance profile at the positions of the equal generalized fresnel number can be achieved if the fgb and sgb have the same a / 2 - factor and waist width

    在此基礎上首次對相同m ~ 2因子、四川大學博士學位論文不同束腰的平頂高斯光束和超高斯光束作了比較,發現具有棋同礦因子、不同束腰的平頂高斯光束和超高斯光束在近軸abcd光學統中傳輸時,在菲涅爾相同的兩個面上具有相側的光強分佈
  16. In the light of the pulse width of the radar wave, this paper deals with the difference and the relationship between the vertical resolution and the transverse resolution of the ground - penetrating radar, indicates the influence of the noise upon the resolution and, with practical examples, points out that the digital handling of the signal can greatly improve the resolution of the radar

    摘要從雷達波脈沖出發,闡述垂直解析與橫向解析的區別和相互關,並同時指出噪音對解析的影響,用實例說明訊號的字處理能大大的改善解析
  17. Compared w ith t he c alculated r esults and monitoring data, to verify i f the p resent parameters can accord with the real situation of nanjing. the distribution of surface settlement trough is obtained by one - dimensional wave theory and calculation. the range of surface settlement trough coefficient is retrofitted

    通過對比peck法計算值和實測值,驗證現有的經驗參是否能很好地滿足南京地區的實際情況,通過對實測曲線的擬合和值計算得到沉降槽半,從而改進了南京地區橫向地表沉降槽寬度系數k的取值范圍,有助於盾構法在南京地區的推廣和應用。
  18. We deduced a expressions for threshold voltage temperature coefficient of short channel most. and found that the coefficient is almost unchanged in a quite wide temperature range which is higher than the room temperature, but it increased sharply at high temperature

    推導了了一個短溝道most閾值電壓溫表達式;發現短溝道most閾值電壓溫在高於室溫的一個較的溫區內近似不變,但在溫較高時迅速增大。
  19. Then, only a given curve satisfied by the conditions of import and outlet of vane wheel as its modular curve will neglect the middle varying processes of in vane wheel, which reflect microscope properties in some degree - flow properties in boundary layer. leading into the velocity - coefficient unifies the boundary layer and eular theory in the design process of vane, which extends the area of selection of vane ' s curves and provides a valuable object function for the optimization design of vane

    那麼,僅憑一條預先給定的滿足葉輪出入口條件的曲線去來作為葉輪的型線,它必將忽略了這種除了葉輪出入口之外的中間變化過程,而這種中間變化在某種程來說又反映出微觀特性? ?邊界層流動特性;速的引入,它使邊界層理論和歐拉理論在泵的葉輪設計過程中得到統一;它使選擇葉片曲線的域圍拓;它也為葉輪的優化設計提供了一個很有參考價值的目標函
  20. The project is completed in the collaboration of the transportation college of jilin university and transportation science institute in jilin province. the paper mainly studies the characteristics and mechanical performance of small size member of bridge, the problems of concrete dense degree and shear lag effect of wide flange. the static load test and supersonic nondestructive test of four pieces of prestressed i - girder with varying section are carried out in bridge structure laboratory of jilin university

    本文針對橋梁構件局部尺寸較小部位的混凝土密實問題,進行了2片腹板為14cm , 2片腹板為16cm的變截面預應力工字梁的靜載試驗和超聲無損檢測試驗,提出密實的概念,對試驗梁的密實進行定量評定,推導了工字梁的塑性公式,基於塑性理論給出了試驗梁的開裂荷載和極限承載能力計算公式,分析了試驗梁的密實對其開裂荷載和極限承載能力的影響。
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