間隙比 的英文怎麼說
中文拼音 [jiānxìbǐ]
間隙比
英文
clearance ratio- 間 : 間Ⅰ名詞1 (中間) between; among 2 (一定的空間或時間里) with a definite time or space 3 (一間...
- 隙 : 名詞1 (縫隙; 裂縫) crack; chink; crevice 2 (空閑) gap; interval 3 (漏洞; 機會) loophole; op...
- 比 : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
- 間隙 : (空隙) interval; gap; freedom; space; [機械工程] clearance; separation; stricture; clear; inter...
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Chlorenchyma a from of parenchyma in which the cells contain many chloroplasts and relatively large intercellular spaces, as in the mesophyll of the leaf
綠色組織:薄壁組織的一種,在這種組織中細胞包含許多葉綠體和相對較大的細胞間隙,比如葉片中的葉肉。There are many adaptive changes in the two research subjects ( artemisia. songarica schrenk. and seriphidium. santolinum ( schrenk ) polijak. ) in morphology and anatomy, such as with the increase of the daily age, the root - shoots ratio increased ; the root became stronger ; the ratio of leaf volume and leaf area increased ; the volume of epidermic cell decreased ; the cut - icle and phellem layer on the surface of root thickened. stoma caved in leaf ; epidermal hair of leaf and stem well - developed, palisde tissue developed well, the cell gap decreased ; the spongy tissue disappeared ; leaf is kinds of isolateralthat is the typical xeromorphic structure ; crystal cell and fibric cell increased ; conducting tissue and mechanical tissue developed well ; bundle sheath appeared
實驗研究的兩種菊科( compositae )植物(準噶爾沙蒿( artemisiasongaricaschrenk )和沙漠絹蒿( seriphidiumsantolinum ( schrenk ) poljak . ) ) ,形態解剖方面的變化表現為:隨日齡增加,根長/株高比值日益增大;根系逐漸發達;體積與葉面積比逐漸增大;表皮細胞體積變小;角質層增厚;根外部出現加厚的木栓層;氣孔下陷;葉、莖部的表皮毛密布,柵欄組織日益發達;而細胞間隙日漸變小;海綿組織逐漸消失;葉面結構常為典型旱生結構? ?等葉面;晶細胞及纖維細胞數目增多;輸導組織、機械組織日漸發達;具有維管束鞘等等。Design for aira has gone through from piston - rod journey principle to interruption check principle
其自動調整臂經歷從開始使用活塞桿行程原理設計到使用比較先進的間隙檢測原理進行設計。Abstract : on the basis of that the proportion of time spent sparking is analyzed in electrical discharge machining ( edm ) process, a new method. which is used to ascertain the trend of discharge gap change, is presented. and a fuzzy control strtegy is introduced to parctical use, the results is well
文摘:通過對電火花成形機放電狀態的分析,提出了利用分析周期內出現異常放電狀態時間的比例及開路狀態所佔時間的比例,來判別電火花成形加工的間隙放電狀態及其變化趨勢的方法,並在此基礎上利用模糊控制策略實現了對電火花成形加工過程中放電狀態的控制,取得了令人滿意的效果。The heat expansion coefficient of casting nylon materials is about 10 times larger than steel, so the internal dia shrinks caused by the expansion. it will influence the connection gap of the abrasive surface
鑄型尼材料的熱膨脹系數約比鋼材大10倍左右,所以軸套在運行時由於摩擦熱所造成的膨脹變形使內徑縮小,影響摩擦面的配合間隙。Comparing with full light treatment ( control ), tr, gs, wue and light saturation point were significantly decreased, ci was increased by shading. so far as curve of light response, seedlings of 2 tree species represented higher photosynthetic capability under shading treatments in the ranges of low light
和對照的全光照處理相比,遮蔭處理顯著地降低了多脈青岡和金葉含笑的蒸騰速率、氣孔導度、水分利用率和光飽和點,細胞間隙co _ 2濃度在遮蔭條件下顯著上升。The equipment adopts centrifugal sliding plow groove rotor and is the newest structure evaporator at present. it can form membrane under the condition of small flow. comparing with that of fixed space drag evaporator, its evaporation capacity can increase 40
本設備採用離心式滑動溝槽轉子,是目前國外最新結構蒸發器,在流量很小的情況下也能形成薄膜,在簡體蒸發段內壁表面附著處理液中的淤積物可被活動刮板迅速移去,和固定間隙的刮板蒸發器相比,蒸發量可提高40 69 。In the process of threshing, the significance of factors, which influence threshing performance, not only include some certain factors such as feed quantity, cylinder rotary speed, distance between cylinder and concave, thresher concave radian but also include some uncertain factors such as the crop ' s variety, water content and the proportion of cereal straw. for this reason, the seed - husking plant is system with a character of uncertain, multi - input - output and complex nonlinear
脫粒裝置的工作過程極為復雜,影響脫粒性能的因素很多,除了喂入量、滾筒轉速、凹板長度與入口間隙等確定性因素外,還有作物品種、作物含水率以及穀草比等一些不確定性因素,因此脫粒裝置是一個具有不確定性、多輸入多輸出的復雜非線性系統。The results indicated that ( 1 ) " longxianhuosuan " presented more regular and more densely - arranged epidermal cells in its scapes than " gailiangsuan " ; ( 2 ) " longxianhuosuan " showed a lower stomata number but a larger stomatal aperture in its scape surface than " gailiangsuan " ; its scapes had a great number of secretory cells, which had a larger size and appeared earlier ; its scapes presented a smaller number of vascular bundles with smaller diameters ( 3 ) " longxianhuosuan " had polygonal cells in its scape pith with their intercellular space occupying a small proportion while " gailiangsuan " showed elliptical cells in its scape pith with their intercellular space occupying a high proportion
結果表明: ( 1 ) 「隴縣火蒜」比「改良蒜」蒜薹的表皮細胞形狀規則,排列緻密;角質層較薄; ( 2 ) 「隴縣火蒜」比「改良蒜」蒜薹表面的氣孔數量少,但開張度大;分泌細胞出現早、體積大、數量多;維管束數量少、直徑小; ( 3 ) 「隴縣火蒜」蒜薹髓細胞衛多邊形,髓細胞間隙率小,而「改良蒜」蒜薹的髓細胞呈橢圓形,髓細胞間隙率大。The longer the air gap is, the higher the inception voltage ; the inception voltage is lower with 2kv at wet ice than dry ice. while, there is not a distinct effect of water conductivity on the initiative voltage
間隙越長,起暈電壓越高;濕冰情況下間隙的起暈電壓比乾冰約低2kv ;而覆冰水電導率對起暈電壓沒有明顯的影響。Surface flashover across the insulators in vacuum is the major limitation of the performance of the high power system, such as high power microwave tube, pulse power switch, high - energy linear accelerator, etc. flashover studies are of considerable importance in many applications. alumina ceramics are used widely in vacuum insulation system. the flashover and charging performance have been systematically investigated on alumina ceramics in vacuum under pulse voltage ( 0. 7 / 4 ^ 8 )
真空中絕緣子沿面閃絡現象是制約高功率微波管、脈沖功率開關、高能粒子加速器等系統性能的主要原因,這是因為真空中絕緣子在一個比自身及相同真空間隙擊穿電場低得多的電場下就發生了表面閃絡的緣故,研究真空中絕緣子沿面閃絡現象及其形成機理對于改善和提高系統性能有重要意義。The corresponding programs in matlab language were presented for various operating mode computations. thus, the excess pore - pressure and void ratio distribution along space - time could be derived. the degree of consolidation, which could be expressed by excess pore - pressure or deformation, was derived for various operating mode and its ’ characteristics along space - time showed rules of warping soil consolidation under osmotic pressure
應用matlab語言編制計算程序對各種工況的超孔隙水壓力消散、孔隙比隨時間和空間的變化進行了求解,對各種計算工況得到的以孔壓和變形表示的固結度的變化規律進行分析,說明滲壓體積力作用下淤填粘土的固結隨時間和空間的非線性分佈特性。The result of the calculation for tip clearance is reasonable when it is compared with theory. two ways are put forward for convention of dimension of the turbine components from high temperature to low one, which is related with tip clearance, a simple example is used to illuminate that the two ways are useful, using the method of design optimization, axiisk and a blade of a certain turhine is analysed, it showes that the method of design optimization is feasible to be used for convertion of dimension of the turbine components. finally, ansys software is used to analyzed the variation of tip clearance with the method of cyclic symmetry analysis when engine works under the conditions of temperature and rotational speed, am using a new method to deal with thermal contact resistance in the calculation
本文完善了計算渦輪葉尖間隙的簡化演算法程序,增加了程序的計算功能,並將其應用於某高壓渦輪進行葉尖間隙分析,所得結果與理論結果進行了對比,得出修改後的程序用於葉尖間隙計算是合理的;同時提出了與葉尖間隙相關的渦輪典型部件的冷、熱態的尺寸兩種換算方法,使用優化設計的方法進行了實例分析,說明了所提出的計算方法是可行的;最後應用ansys有限元軟體利用循環對稱的方法分析了某型發動機高壓渦輪在溫度場及離心力作用下的葉尖間隙在發動機工作過程中變化情況,並分析了計算中的接觸熱阻的處理問題。4. combined with the design of the three gorges prestressed concrete penstock with steel liner in the three gorges power. station, the consistence among the results of theory calculating, the analysis of plane finite element and three dimensional finite element is proved, the concrete stress distributions of the prestressed concrete penstock are analyzed with different steel liner thicknesses, different crack resistances, different concrete thicknesses and different initial radial gaps between steel liner and concrete. the feasibility of the design method of prestressed concrete penstock with steel liner is proved
結合三峽電站鋼襯預應力混凝土聯合受力壓力管道的設計方案選擇及論證分析,對比分析了鋼襯預應力混凝土壓力管道理論計算、平面有限元和管壩整體三維有限元分析結果的一致性,確定了管道結構在不同鋼襯厚度、不同抗裂度要求、不同外包混凝土厚度及不同鋼襯與管壁混凝土間初始徑向間隙等因素影響下的內力分佈規律,驗證了鋼襯預應力混凝土壓力管道的設計方法。In the pseudo - time region, high efficient lu - sgs scheme was used in time - marching. cases with uniform or non - uniform inlet stagnation pressure and with or without tip - gap flow were studied. computed results showed that complex structure vortex appeared and secondary flow occurred in the flow of cascade with tip - gap
對進口總壓均勻或總壓周向虧損(模擬上游尾跡) 、葉尖無間隙或有間隙等三種不同情況的流場計算結果,進行對比分析發現,流場中廣泛存在流動分離、分離渦以及二次流,這是引發非定常擾動的根源。As interleavers have a fairly high cost performance, they have been extensively used in narrow interval dwdm systems
摘要梳狀分波器由於具有較高的性價比,在窄間隙密集波分復用系統中已大量使用。The unconfined compressive strength, shearing strength and permeabi lity of stabilized soils were tested in laboratory, the strength of contaminated composite soils sampled with different ph and soaped in corresponding ph were compared. the results from experiments indicate that there exists a certain relationship between the soft soil properties and the unconfined compressive of grouted soil. with the increase of water content, porosity ratio, degree of porosity, plasticity limit, liquid limit and liquid index, the compressive strength of cement - sodium silicate - stabilized soil decreases, while increases as the bulk weight and compressibility modulus
通過對水泥?水玻璃加固土的無側限抗壓強度試驗,以及用不同酸堿性水製成與養護的固結土所進行強度對比試驗,得出軟土的物理力學性質指標與加固土的抗壓強度之間存在一定的相關關系,即隨著含水量、孔隙比、孔隙度、液塑限及液性指數的增加,水泥?水玻璃加固土的抗壓強度相應地降低;而隨著原狀土的容重、壓縮模量的增加,水泥土的抗壓強度也隨之增加。Abstract : in this paper, the relation between the void in mineral aggregate ( vma ) and bituminous mixture capability are analyzed. the void in mineral aggregate is calculated based on the compose - parameter of bituminous mixture. the paper presents the method of proportioning design that controls the void in mineral aggregate, and the result has been checked out by marshall test and wheel tract test
文摘:分析了礦料間隙率對瀝青混合料路用性能的影響規律.計算了各種混合料組成參數時礦料間隙率的大小.提出了通過控制礦料間隙率來進行瀝青混合料配合比設計的方法,並通過馬歇爾實驗和車轍實驗來加以檢驗The threshold speed and the typical characteristics of the oil whip of the system are simulated under the nonlinear model of oil film force, and the state of motion and type of the bifurcation are analyzed by floquet multiplicators which is computed by the shooting method. secondly, the the nonlinear dynamical model of the low - pressure rotor - bearing system by column bearing with reduced dimensions is presented. the numerical results show the rule of the amplitude with the eccentricity of rotor, the length - to - diameter ratio, oil viscosity and the clearance - to - radius ratio of the bearing under the definite speed
其次,對降維后的低壓轉子?軸承系統的非線性動力學方程,計算了圓柱瓦軸承支撐的轉子系統的振動穩定性在固定轉速下隨偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比的變化規律,並分析了轉子前軸承軸頸的失穩轉速與轉子偏心距、軸承長徑比、潤滑油動力粘度和軸承間隙比之間的關系,同時利用floquet理論分析其運動狀態和分岔類型。Experimental study of the characteristics of the flow around a horizontal cylinder at various gap - ratios
各種間隙比下水平圓柱繞流特性的實驗研究分享友人