length-to-thickness ratio 中文意思是什麼

length-to-thickness ratio 解釋
長厚比值
  • length : n. 1. 長，長度，長短。2. （時間的）長短，期間。3. （賽艇的）一艇的長度；一馬的長度。4. 程度，范圍。5. 【板球】球程；投至適當距離的球。6. 【語言學】音長。7. 一段，一節。
  • to : adv 到某種狀態；〈特指〉到停止狀態；關閉。 ★也常和動詞結合，略去其後賓語，而構成成語： The door i...
  • thickness : n 1 厚；粗；厚度；粗大。2 濃度，濃厚，黏稠。3 密度；稠密。4 模糊不清，多煙霧，混濁。5 愚笨；遲鈍...
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Thickness of upper and lower epidermis of leaves, width of xylem and phloem of annual and biennial branches, ratio of late wood to early wood, periderm thickness of biennial branches, and length of xylem ray present decreasing trends with latitude ascending ; while ratio of palisade tissue to spongy tissue, epidermis thickness of annual branches, and cortex thickness of biennial branches show unobvious variations with latitude increasing

    葉的上下表皮厚度、 1和2年生枝木質部及韌皮部寬度、晚材早材比值、 2年生枝的周皮厚度、木射線長等均隨緯度升高而呈下降趨勢；而葉的柵欄組織和海綿組織比值、 1年生枝表皮厚度、 2年生皮層厚度等解剖結構隨緯度變化沒有明顯規律。
  2. The results show that the heat preservation coating and its proper thickness are favorable to the enhancement of filling mold speed of aluminium alloy ; the higher the pouring temperature is and the larger the ratio of hollow areas of vertical pouring is, the faster the speed of filling mold of aluminium alloy is ; if the mold is too thick or too thin, it may decrease the speed of filling mold ; the proper length and the area of vertical pouring are favorable to the enhancement of the speed of filling mold ; although negatire - pressure may improve filling the speed, too high negatire - pressure may enlarge the flaw in casting

    結果表明：保溫塗料及一定的塗層厚度有利於提高鋁液的充型速度；澆注溫度越高、直澆道空心面積率越大，鋁液充型速度越快；模樣厚度太厚或太薄，均會使鋁液充型速度降低；一定的直澆道長度及直澆道面積有利於提高鋁液的充型速度；施加負壓會使鋁液的充型速度大大提高，但負壓過大會增大鑄造缺陷。
  3. The results indicate that the fracture toughness is influenced markedly by the different base structure of vermicular east iron and by the form of graphite ; unlike steel, the fracture toughness of vermicular cast iron increases with the yielding strength, while drops drastically with the increase of ratio of graphite grain length to thickness

    試驗結果表明，蠕墨鑄鐵的斷裂韌度受不同基體組織的影響比較明顯；受不同石墨形態的影響顯著，與結構鋼不同，蠕墨鑄鐵的斷裂韌度隨材料的屈服強度增大而增大，隨石墨顆粒的長厚比增加會急劇下降。
  4. This paper applies nonlinear finite element program bsnfem to analyze the behaviors of eccentrically braced steel frames under cyclic load. the study that comprehensive and systematic analyze the factor of links length, thickness of links flange, distance of links rib, thickness of links rib and angle of brace to be changed affect energy - dissipation capacity of d shape and k shape eccentrically braced steel frames have been some studied before. this paper fills the black in the filed factor of high - span ratio, brace stiffness and brace - to - beam connections to be changed affect energy - dissipation capacity of d shape and k shape eccentrically braced steel trames and any factor to be changed affect energy - dissipation capacity of y shape eccentrically braced steel frames

    對耗能梁段的長度、耗能梁段腹板的厚度、耗能梁段翼緣的厚度、耗能梁段加勁肋的間距、耗能梁段加勁肋的厚度、支撐的夾角等因素的改變對d形、 k形偏心支撐鋼框架耗能的影響，前人已有一些研究，本文對這些因素的影響進行了全面系統的分析，完善了理論分析的不足；而結構高跨比、支撐剛度、支撐與梁的連接形式等因素對d形、 k形偏心支撐鋼框架破壞機理的研究以及各種因素對y形偏心支撐鋼框架破壞機理的影響，則很少有人涉及，本文對此也進行了深入系統的分析，填補了這一研究空白。
  5. The non - dimensional relationship of load - bearing capacity is put forward, the virtue of which is that, given the same ratio of limb length to thickness, one curve presents many kinds of section dimensions and concrete strengths, thus the quantity of present relation curves is greatly reduced

    提出了無量綱形式相關曲線，無量綱的優點是當柱截面長、厚比相同時，一條曲線可以代表多種截面尺寸和混凝土強度，使目前的有量綱相關曲線數量大大減小。
  6. The ratio of the length to the depth of scour hole decreases with the increasing scour depth, in spite of the reason is the increase of the air concentration, the decrease of the jet velocity or the decrease of the jet thickness. 5. governing equations of the aerated jet flow are established

    摻氣對沖坑形態並沒有實質性的影響，沖坑的寬深比隨沖坑深度的減小而增大，無論造成沖坑深度減小的原因四） 1大學i學博士學位論文是摻氣、降低流速還是減小入射水舌厚度，其變化規律都可用相同的直線關系表示。
  7. In the plate region of a vehicle image, the gray value varies frequently in cross - direction, so we define a parameter ". cross variance " to describe it. we also calculate other parameters to approximately locate the plate, they are the space length between two chars, the thickness of stroke, the peak and trough of gray value, the ratio of width and length, etc. at last, we exactly locate the plate by the theory of mathematical morphology

    該方法根據圖像車牌區域橫向灰度值變化頻率比較大這一特徵提出了橫向方差參數，並結合車牌的字元間距、筆劃粗細、灰度峰谷值、長寬比值等特徵粗定位車牌，在車牌的精確定位中利用了數學形態學的方法。我們從某高速公路收費站實地拍攝的照片中選取了1000多幅作為實驗樣本數據。
  8. A solid - waste containment system can be simplified as a slope which contains a layer of geomembrane ( which is simplified as interlayer slope in the rest part ). shaking table model test and numerical analysis have been done to study the seismic stability of interlayer slope based on the two - part wedge theory in this paper. many factors which affect the slope stability ratio, including horizontal seismic coefficient, slope angle, soil - geomembrane interaction coefficient, slope length, layer thickness and soil character, have been took into consideration

    填埋場防滲基坑的邊坡可以簡化成含土工膜夾層的土坡（以下簡稱夾層土坡） ，本文根據「雙滑楔體」理論思想，對夾層土坡的地震穩定性問題進行了較為系統的模型試驗和數值分析，著重考慮了水平地震系數、夾層土坡坡角、土工膜與覆蓋層土體摩擦系數、夾層邊坡長度和厚度、夾層土坡覆蓋層土體性質等因素對土坡安全系數的影響，並對地震作用下夾層土坡的永久變形進行了初步的研究，給出了對實際工程設計有參考價值的結論。
  9. In order to determine the relations between the four main bond - anchoring factors - concrete strength, concrete cover thickness, steel shape embedment length and the ratio of the transverse hoops - and the bond strength, and establish the bond - slip constitutive relations, 16 standard push - out test specimens were designed, and 4 comparison specimens were additionally designed to find the difference of the bond performance between the web, inside and outside of flanges the steel shape

    設計了16個型鋼混凝土標準推出試件，以考察混凝土強度、型鋼的混凝土保護層厚度、型鋼埋置長度及橫向配箍率四個主要錨固條件與粘結強度的相互關系和型鋼混凝土粘結滑移本構關系；設計了4個對比試件，以考察型鋼翼緣內側、外側和腹板與混凝土粘結性能的區別。
  10. Under the horizontal earthquake action and wind force, aim at " the pure frame structure with rectangle columns ", " the pure frame structure with special - shaped columns ", " the frame - truss structure with special - shaped columns " and " frame - shear wall structure with special - shaped columns ", earthquake action analysis was done by the spacial finite element method through the changes structural parameter. analyzing systematically " structure vibration mode ", " vibration period ", " structure lateral rigidity ", " seismic action force ", " seismic response force ", " floor seismic shear force ", " lateral horizontal displacement of structure " and " members internal force ". results indicate : ( 1 ) based on equal area, the special - shaped columns replaced the rectangle columns, the structural lateral rigidity enlarges, the lateral displacement minishes obviously, the earthquake response increase slightly, the biggest increasing amount of frame columns axis - compress ratio is smaller than 0. 08. the whole aseismic performance of structure has improved ; ( 2 ) when the section ' s length and section ' s thickness ratio of special - shaped columns is smaller than 3. 6, the structure benefits to resist seismic action ; ( 3 ) the angle of horizontal seismic action with the whole coordinate is 0 degree, structure earthquake response is bigger, belonging to a control factor of structure aseismic design ; ( 4 ) the frame - truss structure with special - shaped columns and the " a " - brace has the biggest lateral rigidity ; ( 5 ) the frame - shear wall structure with special - shaped columns have bigger lateral rigidity and smaller displacement, members internal force enlarged just rightly, have much superiority of resisting seismic action ; ( 6 ) in the higher seismic fortification criterion region ( 8 degree of seismic fortification intensity ), aseismic disadvantageous building site ( iii type site ), adopting special - shaped columns structure system, should reduce possibly the building ' s self - weight in order to reduce the earthquake response ; ( 7 ) the response spectrum method of computing seismic response and the time - history analysis method have similar analysis result

    西安理工大學碩士學位論文在水平地震作用下，並考慮風荷載組合，分別對「矩形柱純框架結構」 、 「異型柱純框架結構」 、 「異型柱框一析架結構」及「異型柱框-剪結構」等四種結構體系，通過改變結構參數，運用空間有限元方法，進行地震作用計算。系統地分析研究「結構振型」 、 「振動周期」 、 「結構側向剛度」 、 「結構地震反應力」 、 「樓層地震剪力」 、 「結構側向位移」 、 「層間位移角」 ，以及「構件內力」 。結果表明:在等面積原則下，異型柱代換矩形柱后，結構剛度增大，側向位移明顯減小，地震反應力略有增加，框架柱軸壓比最大增幅小於8 % ，結構整體抗震性能有所提高;當異型柱肢長肢厚比小於等於3 . 6時，結構有利於抗震;水平地震作用力與整體坐標夾角為0度時，結構地震作用效應較大，屬結構設計的控制因素之一;異型柱框一析架結構採用「人」字斜撐，側向剛度大於「八」字斜撐和「人一八」字混合斜撐;異型柱框一剪結構側向剛度大、位移小，構件內力增大適中，是一種抗震性能優越的結構體系:在抗震設防烈度較高地區（ 8度）和抗震不利的建築場地（ m類場地） ，採用異型柱結構體系時，應盡可能減輕結構自重，降低地震作用力;分別採用「振型分解反應譜」法和「時程分析」法進行地震作用計算，兩種方法所得結果基本一致。
  11. Second, the thermoelastic coupling vibration of cylindrical shell are discussed by means of the same method. the coupling coefficient, amplitude of temperature, initial displacement, ratio of length to radius and that of radius to thickness are main factors which influence the thermoelastic vibration of cylindrical shell ; the higher the coupling coefficient is, the lower the axial force, the axial stress and the axial moment are

    其次，我們用同樣的方法研究了圓柱殼的非線性熱彈耦合振動，主要結論如下：影響圓柱殼非線性熱彈耦合振動的因素主要有耦合系數、溫度幅值、長徑比、徑厚比以及初始位移參數；耦合系數越大，軸向應力、軸向力以及軸向彎矩越小。
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