頂曲線 的英文怎麼說

中文拼音 [dǐngxiàn]
頂曲線 英文
summit curve
  • : i 名詞(人體或物體的最上部) crown; peak; top Ⅱ動詞1 (用頭支承) carry on the head 2 (從下面拱...
  • : 曲名詞1 (一種韻文形式) qu a type of verse for singing which emerged in the southern song and ji...
  • : 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...
  • 曲線 : [數學] curve; bight; bought; profile; net曲線板 french curve; irregular curve; curve board; splin...
  1. The effect of the support at the crest introduces in particular an inversion of the normal curvature of a free cantilever in free deformation.

    特別是壩支承作用使一個自由懸臂梁的變形
  2. The analyses of positive intercept of jack demarcate curve

    千斤標定正截距問題的分析
  3. The principle of the interleaver with output spectra similar to cosine function, based on mzi, is analyzed theoretically. by using the tandem of two mzis, we get the flattop spectrum ; last, grounding on the polarized light interference and multi - beam interference, we analysis the principle of bgti interleaver, and simulate the relations between output spectra and reflectance of g - t resonator. furthermore the flattop output spectrum of bgti interleaver is achieved

    4 、分析了fmzi型interleaver濾波器的工作原理,其輸出光譜為類餘弦函數;採用級聯fmzi方案,實現了interleaver濾波器的光譜平光譜輸出;最後,基於偏振光干涉和多光束干涉原理,分析了bgti型interleaver濾波器工作原理,模擬了g - t腔部分反射系數r與輸出光譜的關系,獲得了50ghzbgti型interleaver濾波器平化輸出光譜。
  4. When we measure the kurtosis of a distribution, we are measuring its peakedness.

    度量一條頻率分佈的尖削度就是度量其部的峰態。
  5. The present findings of semi - rigid connections, the method for design of beam - to - column connections in the codes from china and other countries, and the character about semi - rigid connections, were briefly introduced in this paper. the simulated method of the m - r relation curve of semi - rigid connections, the computing equations about the initial stiffness and moment capacities of two kinds of top - seat angle connections, with and without double web - angle, were discussed

    本文簡要地介紹了半剛性節點的研究現狀、各國規范樑柱連接的設計計算內容和方法、樑柱連接的類型和半剛性連接的特性,探討了、底角鋼、、底角鋼帶雙腹板角鋼兩種半剛性連接的m - _ r特徵及其擬合方法,底角鋼連接、帶雙腹板底角鋼連接初始剛度以及彎矩承載力的計算公式。
  6. Based on extensive investigation of construction technique history of chinese ancient buildings, the structure method, structure developing history and seismic behavior of chinese ancient timber structure buildings are analyzed in several respects of the structural system and form. through a series of experiments on constituent parts of chinese ancient timber building structure, including the tests on the corbels and brackets called dougong subjected to low cyclic reversed loadings, the tests on the wooden frame using the tenon - mortise joints as connections of column and beam subjected to low cyclic reversed loadings, the tests on vibration isolation effect of friction and slippage between column footing and their socle base, and a series of shaking table tests on a chinese ancient timber structure palace building mode under artificial earthquake at serving conditions, destroyed conditions and reinforced conditions, many valuable results of structures such as moment - curvature hysteretic loops of dougong structure and tenon - mortise joints under low cyckc reversed loadings, the static function, the seismic performance, energy dissipation, vibration reduction, energy - loss mechanism, nechanicalmode and failure mode were studied. aplenty of valuable parameters of the structure system were obtained, such as the natural period of structure, vibration modes, damping ratio, factor of vibration isolation, oscillate amplitude of ineitial accebration, velocity and displacement, magnitude of slippage, and the mechanism of structure failure and collapse etc. based on these research, the complete analysis of ancient timber structure under earthquake were carried out in which including mechanism analysis method, calculating mode, strength analysis of members and joints, strengthening methods for serving damaged ancient timber structure buildings were also taken into account

    依照宋代《營造法式》建造了抬梁式殿堂木結構構件及結構模型,對中國古代木結構中的典型構造如:柱腳在礎石面平擱簡支、柱架榫卯連接、柱高不越間之廣、側腳、生起、斗拱等的構造機理及結構功能進行了量化分析和實驗研究: (一)通過木柱石礎靜摩擦試驗,測定了柱腳與石礎古鏡面間的摩擦系數及摩擦力隨上部結構荷載變化的規律; (二)通過單柱承載力試驗,測定了古建築中木柱的受力變形特徵、破壞模式、及模型材料的變形模量、極限承載力、極限變形等參量; (三)通過柱架低周反復荷載試驗,測定了柱架的抗側移剛度、柱架恢復力特性及滯回、榫卯張角剛度及其變化規律、柱架及榫卯的極限承載力和極限變形、及榫卯減振參數; (四)通過斗?低周反復荷載試驗和受壓試驗,測定了古建築木構件與木構件間摩擦系數,斗?抗側移剛度,斗?恢復力特性及滯回,斗?抗壓極限承載力及受力變形規律; (五)通過抬梁式殿堂間架模型振動臺試驗,測定了殿堂木構架結構自振周期,地震反應振形、阻尼特性及阻尼比;按結構分層特點對柱腳、柱頭和斗?層上的屋蓋的地震反應採用多點同步測量,對柱根滑移、榫卯變形、斗?的變形、復位、耗能減振參數等進行了定量分析。
  7. 6 ) after passage, the qinchuan - scalper skin fibroblast cells were in lag phase in first two day, then entered log phase and persisted six days, they stayed at plateur phase for about three days ; the mitotic index were most high at the fifth day after culture and toboggan at the sixth day

    從生長可以看出,以低糖dmem培養第4代秦川牛皮膚成纖維細胞,接種后滯留期縮短,約一天左右,之後為對數生長期,持續六天左右,進入平期。分裂指數最高時期在培養開始后的第五天,第六天急劇下降。
  8. The fundamental ideas and methods of this paper are also illuminated in this chapter. in chapter two, a one - dimensional and semi - closed shallow sea mode is studied. the approximate analytical expressions of the water level at the top of the bay induced by the nonlinear interaction between the storm surges and the astronomical tides are obtained by using the perturbation method

    在第二章里,研究了一維半封閉水域中的非定常風暴潮與天文潮非性相互作用的問題,用攝動方法求出了具有實際意義的海灣部增水水位的一階近似解析表達式,並給出了增水過程
  9. The time corresponding to the four parts along the section are as follows : the top lake - swamp sediments : holocene ; the uppart fine sand : later late pleistocene ; the middlepart sandy clay : middle - early late pleistocene ; the lowpart clayer silt : later - middle - pleistocene. the fossils and stone artifacts found in salawusu site should be formed during the last but one glacier, its age range is about 0. 13 - 0. 19 ma, and belongs to later middle - pleistocene

    分析q與氧同位素的一致性以及以上研究結果,包含薩拉烏蘇地層的這套沉積物的沉積時代為:部湖沼相沉積物:全新世;上部具交錯層理的細砂:晚更新世晚期;中部粉砂質粘土:晚更新世中期至早期;下部粘土質粉砂:中更新世晚期。
  10. Abstract : the solid modeling of computer drawing technique has been applied to the pyramidal roof of ancient chinese pavilion, mainly concerning in the forming of the curves and surfaces

    文摘:用實體造型方法探討中國古建築方亭鉆尖部的計算機繪圖技術.同時,對形成該部的面進行了較深入的分析
  11. This paper studies the application of inductively coupled plasma ( icp ) technology to the etching compound semiconductor insb - in film. by means of single probe and double probe, the ion density and electron temperature of chamber ( 30mm and 50mm in height respectively ) under varied process condition were diagnosed. the spatial distribution of the axial position of the two parameters and the varied curve that the two parameters varies with the power and air pressure are obtained

    利用單探針和雙探針診斷30mm高反應室和50mm高反應室在各種工藝條件下的離子密度和電子溫度,得到這兩個參數在反應室軸向位置的空間分佈、隨功率和氣壓的變化蓋接地和反應室體積對它們的影響,結果表明離子密度為10 ~ 8 10 ~ ( 10 ) cm ~ ( - 3 ) ,電子溫度在4 10ev之間;當蓋接地時,該處的等離子體密度明顯大於不接地;在同樣條件下, 50mm高反應室內的離子密度明顯大於30mm高反應室。
  12. The other : a slender splayfoot chair of glossy cane curves, placed directly opposite the former, its frame from top to seat and from seat to base being varnished dark brown, its seat being a bright circle of white plaited rush

    與它相對的另一把細細溜溜撇著兩雙八字腳的藤椅是由有光澤的構成的。椅架從部到坐位,又從坐位到底部,整個兒都塗著暗褐色清漆,坐位則用白色燈心草鮮明地盤成圓形。
  13. The ship was tacking trying to make the harbor

    該船在航行,力圖駛入港口停靠。
  14. After thoroughly analyzing the influence of each pump parameters on the gear pump performance, the paper developes the criterion for optimum gear parameters, which can be utilizied in practice easily for gear manufacturing using normal involute gear hob with two - fillet type. the conclutions studied by the paper are : 1. both the addendum coefficient and the deddendum coefficient of the pump gear should be 1. 125

    以目前國內普遍使用的雙圓弧頭全齒高為2 . 5倍模數漸開標準滾刀作為泵齒輪的加工刀具,通過對齒輪加工原理的分析,提出了欲使泵齒輪參數達到最佳,泵齒輪的齒高系數和齒根高系數都為1 . 125 ;對變位系數的確定應考慮到泵齒輪的根切、齒厚、重合度以及側隙因素;泵齒輪為避免過渡干涉,必然要存在根切現象。
  15. In order to solve this problem, we present a new method in this paper through using the bezier curve as the axial deformation control curve to generate variety trunks and branches

    在生成樹的過程中,利用bezier作為點控制,採用軸變形方法生成形態各異、效果逼真的樹乾和分枝。
  16. During the past decades, some researchers, such as : bezier, kj. versprile, deboor and cox, etc. had made great progress in the filed of constrained b - spline curve and surface fitting. in this article the method of constrained b - spline curve was introduced, which is used to figure out the control vertexes. using this interpolation method we can calculate every points of a uniform b - spline

    並且分析了在各種端點情況下,在重節點的情況下,如何反算控制多邊形的點;如何在求出控制多邊形點之後,插值計算b樣條擬合上的每一點;並通過結合雙尾船的型,採用visualc + +和autocad2002為平臺,分別編制了相應的軟體,對提供的型值做出繪圖處理,取得了良好的效果。
  17. Nurbs curve equation contains two shape parameters, i. e. control convex and the weight factor

    Nurbs方程包含了兩個形狀因子:控制點和相應控制點的權因子。
  18. Moving control convex will change the shape of nurbs curve, while altering the weight factor will also vary the shape of nurbs

    移動控制點可以改變的形狀,而改變權因子也會影響的形狀。
  19. In the paper the initial iocation and dimension of step are studied from which we get the conclusion tha the energy dissipation is highcr if the initial location is at the curve section of l / 2 height of the spillway top and the dimension gap of neighbor step is bigger, the energy dissipation is higher

    通過對階梯溢流壩的過渡階梯的起始位置和具體尺寸的試驗研究。得出過渡階梯的最佳起始位置約在壩頂曲線段1 2高度處且相鄰階梯的尺寸相差較大時,所得的消能率較高。
  20. Abstract : this paper takes the manufacturing of non - circular gear as an example to analyze the non - circular gear ' s tip curve error influence upon it s contact ratio which is manufactured by involute cylindrical shape cutter, and it provides a theory basis to control strictly non - circular gear ' s contact ratio

    文摘:以非圓齒輪插齒加工為例,分析了利用漸開圓柱插齒刀加工非圓齒輪時齒頂曲線誤差對非圓齒輪重合度的影響,為嚴格控制非圓齒輪副的重合度提供了理論保證。
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