developed length 中文意思是什麼

developed length 解釋
伸展長度
  • developed : 不發達的
  • 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。
  1. In the present study, aflp ( amplified fragment length polymorphism ) markers was used to examine population of abies yuanbaoshanensis in order to understand the level of population genetic variation and genetic structure. the result would help to evaluate its evolutionary potentiality and the degree of being endangered and could provide scientific basis for making right protection strategy. high - quality dna was extracted using ctab method from those tender leaves of forty - three fully - developed trees in population abies yuanbaoshanensis

    本研究選用一種高效的檢測遺傳變異的分子標記? ? aflp技術來分析元寶山冷杉種群的遺傳多樣性,旨在了解該種群在分佈區內的遺傳變異水平和遺傳結構情況;研究結果將有助於更清楚地認識這一瀕危類群的生存潛力和瀕危程度,而且可以為制定何種挽救和保護措施提供科學的依據。
  2. It shows many typical characters seen in the type species of the genus of sinornithosaurus, which discovered also from western liaoning. ngmc 00 - 12 - a can further be included in sinornithosaurus by the dentary bifurcated posteriorly, unserrated premaxillary teeth, u - shaped furcula, extremel y short manual phalanx iii - 2 in comparison with the length of phalanx iii - l, very large and developed obturator process of the ischium, partially arctometatarsalian metatarsal iii and so on

    它具有許多中國鳥龍屬sinornithosaurus所特有的特徵,如:齒骨後部分叉、前頜骨齒齒冠前後緣均無小鋸齒、叉骨u形、第指第2指節很短、坐骨封閉突極大且具有坐骨後背突、第?骨部分窄足型等,因而無疑應歸入該屬中。
  3. ( 2 ) the liman problem is normally adopted to check the liability of numerical method. the calculation error was within 9 % by comparison with the theoretic solutions of liman problem in the following case, the dimensionless calculation length was 2 with high pressure zone 0. 8, and the dimensionless state parameters were p1 = 2, p2 = 1, p1 = p2 = 1, u1 = u2 = 0. experiment results in literature [ 8 ] were used to check the adaptability of the numerical model developed here for unconfined gas cloud explosions and the calculation error was within 13 %

    ( 2 )數值方法的可靠性通常用黎曼問題的解析解檢驗,本文以無量綱計算區長度為2 ,高壓區長度為0 . 8 ,狀態參數為p _ 1 = 2 , p _ 2 = 1 , _ 1 = _ 2 = 1 , u _ 1 = u _ 2 = 0條件下的黎曼問題解析解對所編制的爆炸場計算程序進行了考核,結果表明該程序的計算誤差在9以內;為考核本文計算模型預測開敞空間氣雲爆炸的適用性,以文獻[ 8 ]的實驗數據進行了校核,計算誤差在13以內。
  4. Backing weld procedure technique of all - position narrow gap and thick - walled pipe welding is developed about all - position single - pass welding section analysis, wire feeding behavior, weld arc length, welding current analysis, procedure and joint test. the achievement has general guide meaning to producing and testing all - position welder

    從單焊道全位置區段、送絲行為、焊接弧長(電壓) 、電流行為分析、工藝試驗和接頭檢驗等幾方面介紹管道全位置打底焊工藝特點,其研究成果對全位置焊接機的製造和調試具有普遍指導意義。
  5. Abstract : backing weld procedure technique of all - position narrow gap and thick - walled pipe welding is developed about all - position single - pass welding section analysis, wire feeding behavior, weld arc length, welding current analysis, procedure and joint test. the achievement has general guide meaning to producing and testing all - position welder

    文摘:從單焊道全位置區段、送絲行為、焊接弧長(電壓) 、電流行為分析、工藝試驗和接頭檢驗等幾方面介紹管道全位置打底焊工藝特點,其研究成果對全位置焊接機的製造和調試具有普遍指導意義。
  6. The calculation method of ln ( / tan # ) index widely used is the multiple flow direction algorithm developed by quinn et al. it can been seen that, in the algorithm, the contour length normal to the direction of flow flowing out the current cell is used to determine both a and tan #, and that the calculated total cumulative contributing area of downslide grid cell does not include the area of the current cell

    目前普遍使用的計算該地形指數的方法為多流向法。方法中計算和tan用的均是與流出單元網格流向垂直的等高線長。另外計算下坡單元網格累積匯流面積時沒有考慮欲計算ln ( tan )值的單元網格的面積,這些是不合理的。
  7. Average production length ( apl ) is introduced as the criterion for measuring control scheme performance. a model is developed with sampling rate and maximum false alarm rate as inputs to determine the optimum subgroup size and control limits as measured by apl

    本文以平均運行長度( apl )為衡量控制圖有效性的標準,以抽樣比例和最大可接受錯誤報警率為輸入,通過建立模型的方法,確定最佳的樣本容量和控制線參數。
  8. The donkey - adapted strain of eiav ( dv116 ), parental strain of eiav - dla, is a highly virulent isolate which was developed by sequential passaging a virulent eiav strain in donkeys in 1970s. the donkeys inoculated with fatal doses of eiav d strain can always be killed within in the first acute disease period. in this study, we constructed a full - length provirus dna clone of dv116 by pcr

    本實驗中將eiav驢強毒dv體外感染驢白細胞培養物,一定時間后收獲病毒(本文中簡稱dv116 ) ,提取eiav前病毒dna ,以pcr法分別擴增並克隆了包含全長基因的三段前病毒dna片段,以雙脫氧法測定了dv116病毒全基因序列共8236個核苷酸。
  9. The etching reactor is developed to obtain reproducible tapers of desired diameter and length. an approach for on - line monitoring of etching using the power meter is demonstrated. based on the experimental data, the relationship between the leak - out optical power and change of time and also that between the leak - out power and width of the remaining width of cladding, and the fiber length exposed to hf acid are summarized

    本文對氫氟酸腐蝕法製作光纖耦合器的反應裝置和實驗系統進行了設計,介紹了具體的實驗過程及其注意事項,通過對實驗結果進行分析總結,得出泄漏光功率隨腐蝕時間的變化關系以及泄漏光功率與包層剩餘厚度和腐蝕長度的關系。
  10. Based on the analysis of the kinetic track of the scallion during planting, basic relationships ' among the characteristic parameters of the transplanter with two flexible metal disks, including the velocity of the transplanter, the rate of transplanting, the spacing between seedlings, the angle of releasing seedlings, the diameter and length of seedlings, have been set up in this paper, and then a mathematic model of optimum design for the transplanter with the final planting angle of seedlings ( y = 90 ) has been formulated and solved with good results. according to the optimum solutions, a new type of transplanter with two flexible metal disks has been developed and the field tests of the transplanter have been conducted

    為了實現大蔥機械化移栽,作者分析了國內各種移栽機的結構特點,確定了以撓性圓盤式栽植器為研究對象,在分析撓性圓盤式栽植器的運動軌跡和特徵參數的基礎上,完整地確立了撓性圓盤式移栽機的基本參數:栽植頻率、栽植株距、機組前進速度、輸送帶上秧槽的間距、撓性圓盤半徑、撓性圓盤的轉速、夾苗株數以及傳動比之間的相互關系,並建立了以蔥苗栽植傾角= 90為目標的優化設計數學模型,提出了撓性圓盤式大蔥移栽機的優化設計方法。
  11. Abstract : with the aids of computer ' s hardware, executive mechanism of weld arc length automatic controller of all - position pipe welder and additional software, an automatic system for arc striking has been developed, in which touch - starting method using tiny current is introduced. utilizing this method, the ablation ratio of tungsten electrode and tungsten inclusion ratio of welded seam is far smaller than normal touch - starting method. and the successful ratio of arc striking is high

    文摘:用全位置自動焊管機弧長自動控制系統的計算機硬體和執行機構,僅增加部分程序,設計了採用小電流接觸引弧法的自動引弧系統,鎢極燒損和焊縫夾鎢遠小於普通的接觸引弧方式,引弧成功率很高。
  12. As i walked down the stairway, an interesting scene attracted my attention. on the slightly white carpet, about ten centimeters from the first step of the stairway, was a well - developed myriapod about six centimeters in length, stretching its body in a straight line and moving toward the stairs leading to the meditation hall

    當我走到樓梯的盡頭時,一幕有趣的景象吸引了我的視線:略帶白色的地毯上,有一條長約六公分頗為豐滿的百足蟲,全身筆直,不偏不倚地朝著大殿入口處的樓梯前進。
  13. With the embedded pc controlling, the control level of the automatic cutter is developed highly. with the digital servo - system, the exact control is developed in the exact length and connect of the automatic cutter

    採用嵌入式pc作為控制式計算機來提高自動裁斷機的控制水平,用位置伺服系統來改進自動裁斷機的定長和對接的精確定位控制。
  14. In accordance with different tripping annulus at the inlet, the numerical simulations of the reattachment length were performed with the " variable c ? " model. in the range of experimental reynolds number, the tripping effect on the reattachment length was developed in the figure. the dependence of the reattachment length on reynolds number was also analysed in the different status of pipe flow

    利用變模型常數的-模型針對不同尺寸的擋環進行了再附著長度的模擬計算,在實驗雷諾數范圍內,建立了入口處擋環對再附著長度影響的變化曲線,分析了再附著長度在不同的管流流動狀態下相對于雷諾數的變化情況。
  15. The goal of this paper is to study fully developed turbulent pipe flow. with the aid of the tripping annulus at the inlet, based on the experimental investigation and numerical simulation, detailed researches on a few basic rules in pipe flow have been performed, such as mean velocity profile, relative intensity of turbulence, the log - law, von karman ' s constant and reattachment length, thus filling some gaps in the research work of predecessors and obtaining a far - reaching understanding

    本文的目的就是利用入口擋環進一步探索充分發展的圓管湍流,通過實驗和數值模擬對圓管湍流的若干基本規律,如平均速度分佈、相對湍流強度、對數定律、馮?卡門常數和再附著長度等進行詳細的研究,以填補前人研究中的一些空白,並獲得更深入的了解。
  16. Scientists have developed a new data transfer protocol for the internet fast enough to download a full - length dvd movie in less than five seconds, the california institute of technology said today

    加利福尼亞理工學院今天表示,科學家已經開發了可以用5秒以下的時間下載整部dvd電影的新數據傳送協議,可以為因特網提供足夠快的下載速度。
  17. A monte carlo model was developed for simulating the adsorption behaviors of linear macromolecule chains on the solid - liquid interface. the simulations were performed on a simple cubic lattice, which was 50 50 50 sites in size. the concentration profiles of total segments, tails and loops in dilute solutions were used to analyze the influences of simulation parameters ( body concentration, interaction energy between segments, adsorption energy of interface, and macromolecule chain length ) on various adsorption configurations

    本文採用montecarlo方法構造了水溶性均聚鏈狀高分子固液界面吸附模型,在50 50 50簡單立方格子上模擬研究了高分子稀溶液中鏈節濃度、鏈尾和鏈環分佈,並結合真實高分子鏈的吸附行為,討論了模擬參數(鏈節間相互作用能、界面吸附能、體相濃度與鏈長)對各種吸附構型分佈、吸附量、表面覆蓋度和附著分數的影響。
  18. In the paper, based on the method of low pair replacing with high pair, the problem of cam design was transferred to that of linkage design. by means of rotary unit vectors, the equations of displacement, velocity and acceleration of the replacement mechanisms were developed. and then, the virtual linkage ' s length and direction were deduced

    論文基於高副低代原理,將平面凸輪機構設計與再現函數的平面連桿機構設計統一為同一種方法,運用圓向量函數建立代換機構的位移、速度、加速度矢量方程式,求取虛擬連桿桿長和方向,由此展開凸輪理論廓線、實際廓線、曲率半徑和壓力角的求解,並得出用圓形刀具加工凸輪時刀具中心的軌跡方程。
  19. The keystone of the thesis is the development direction of web technology, that is b / s mode has developed from two - layer structure to three or more layers. the thesis takes the financing plan search management system of some insurance and investment company for example, puts emphasis on discussing the solution of sybase enterprise web, distributed and c / s application, and introduces at length the whole application procedure of the object component of using b / s mode which uses jaguar cts developed by java as the component server and powerdynamo as the application server

    本文重點介紹了web三層乃至n層(包含對象組件技術)模式的發展狀況,以信託投資公司的資金計劃查詢管理系統為例,採用了sysbase企業級的web分散式開發環境sybaseeastudio ,詳細介紹了運用b s模式的對象組件技術、用純java開發的jaguarcts作為組件服務器、用powerdynamo作為應用服務器的全部實現過程。
  20. Through the experimentation for the physical performance of cfpb masonry under local compression, the author has observed the deformation and failure of cfpbm. based on the mathematical statistics and regression analysis of the experimental data, the author derived a feasible and common formula for counting the cfpbm ' s local compression strength regarding the different local compression locations, analyzed stress distribution of local bearing masonry under beams end, and provided the calculating formula on effective supporting length of beam end in brick masonry. as the results of experiments demonstrate, owing to the cfpb ' s own holes " system, the beneficial effects, the bounding effect of surrounding masonry and the spread effect of force, have not developed completely

    試驗結果分析表明:由於多孔磚自身的孔洞結構,砌體內部的圍箍作用和力的擴散作用未得到充分發揮,局壓強度雖較軸心受壓強度有所提高,但仍低於同情況下實心磚的局壓強度;當有上部荷載作用時,對砌體局壓有利的懸臂卸荷作用和內拱卸荷作用均不明顯,因此在推導梁端局壓強度計算公式時,未考慮此可能存在的有利影響,計算偏安全;局壓強度提高系數公式除採用規范公式(二項式)的表達式,還用對數式進行了回歸推導,得到了一個較為普遍的公式;論文還對梁端局壓的梁端有效支承長度計算公式進行了回歸推導。
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