pipe factor 中文意思是什麼
pipe factor
解釋
鉆管體積校正系數-
The calculation formula for structure damping exhausting factor of combined pipe is denoted. structure exhausting factor of combined pipe treated by the damping material of sa - 3 is obtained with the different temperature and damping layer thickness
推導出管道表面阻尼處理后復合管結構損耗因子的計算公式，並得出了sa - 3阻尼材料處理后，不同溫度、不同阻尼層厚度時復合管的結構損耗因子。 -
Based on the review, the fluid flow and heat transfer in the curved circular and rectangular pipes have been researched by employing perturbation method and numerical simulation with a physical model under the rotational orthogonal curvilinear coordinate in a rotating curvilinear pipe with multi - parameters. we firstly analyzed the fully developed fluid flow and heat transfer, mixed convection heat transfer, the development of flow and heat transfer in the inlet in different cross section ( circular, elliptical, annular and rectangular crossection ). the variations of the secondary flow, axial velocity, distribution of temperature, the friction force on the wall, the ratio of friction factor as well as the nusselt number with different dimensionless parameters had been examined in detailed
本文在總結和分析了一個世紀以來有關曲線管道流動和換熱特性的研究成果的基礎上，以旋轉正交曲線坐標系統下的多參數旋轉螺旋管道中的對流傳熱為物理模型，通過攝動方法和有限體積法，首次對各種截面（圓截面、橢圓截面、環形截面、矩形截面）旋轉曲線管道內充分發展流動的流動結構和傳熱特性（包括耦合對流傳熱特性）以及旋轉曲線管道開口段發展流動的流動結構和換熱特性進行了系統的數值模擬和理論分析，詳細討論了各種無量綱參數對管道內軸向速度分佈、二次流結構、溫度分佈、壁面摩擦力、摩擦系數比以及管道nusselt數的影響，獲得了若干創新性成果。 -
Steel butt - welding pipe fittings ; elbows and bends with reduced pressure factor
對焊鋼管配件.第1部分:壓力減縮系數彎頭和彎管 -
With the increasing of electronic element integration, the problem of heat dispersion has become one of restrict factor in the development of electron technology. to meet the demond of rapidly increased thermal dispersion, numerical simulation and experimental study on heat pipe radiator for electronic element has been made in the paper
由於電子器件散熱技術研究的日益重要，本文首先對電子器件散熱技術及熱管型電子器件散熱器的國內外研究和發展現狀進行了綜述，並在此基礎上對熱管型電子器件散熱器進行了數值模擬和實驗研究。 -
( 5 ) as torsion is increased, the anticlockwise secondary vortexes and the negative area of the stream function increase ; the axial velocity moves anticlockwise ( annular pipe ) or clockwise ( circular pipe ) ; the friction factor ratio finally reaches the value about 1
（ 5 ）增大撓率，逆時針方向旋轉的一二次渦和流函數的負值區域增大，軸向速度最大值的位置按逆時針（環形截面）或順時針（圓截面）方向旋轉，摩擦系數比最終趨向於1 。 -
( 3 ) the weld of pe pipe ca n ' t be proof - test by undestroyed probing. pe pipe must be welded by auto fusion equipment and reduce the man - made factor to the minimum at the same time. the operator must be well skilled and highly responsible, who performs upon weld quality control regulations, and check up the weld strictly after fusion
（ 3 ）聚乙烯管道連介面由於不能象鋼管焊口那樣通過無損檢測手段來驗證是否合格，所以一定要使用自動化程度高的連接機具，將人為因素降到最低，並要求焊工除了熟練的操作技術外還應具備高度責任心，嚴格執行連接施工工藝質量控制要點和有關操作要領，焊接完后採取必要的檢查驗收手段。 -
The sintef work indicates that it is possible for the increased flexibility due to ovalization of the bend to be more than compensated for by a large increase in the wall thickness of the bend, with the result that the global flexibility factor could be less than 1, i. e. the bend is stiffer than the pipe
試譯如下： sintef的文件表明由於彎管橢圓化所增加的撓度可能更容易被彎管壁厚的較大增量所抵消，從而整體撓曲系數會小於1 ，如果彎管硬度大於管道硬度。 -
For the problem of present engineering no criterion market and industry standard disunity of no - dig horizontal directional drilling under pipe paving, the view is put forward in particularity and security of no - dig horizontal directional drilling pipe paving and in reason using of under resource. it emphasizes engineering method data management and unify layout management of no - dig horizontal directional drilling. and it analyzes technology economic and discuss the development of under pipe directional equipment and put forward new thought and studying aspect of no - dig horizontal directional drilling construction engineering criterion management - the effect of all kinds of tache and factor in the different no - dig directional drilling construction are discussed from a great deal of detail no - dig engineering examples
就當前水平定向鉆進鋪設地下管線工程市場不規范和行業標準不統一的問題，本文從非開挖水平定向鉆進鋪管技術特殊性和安全性及地下資源空間的合理利用方面提出了自己的看法和見解，特別強調了對非開挖定向鉆進鋪管工程技術資料的管理和非開挖施工工程的統一規劃管理的問題，並對非開挖水平定向鉆進施工進行了技術經濟分析，並就非開挖施工工程的管線定位的儀器研發進行了分析探討，為非開挖施工的管線規范管理提出了新思路和研究方向。 -
This article analyzed wet fall the natural yellow land to remember the common wet steady factor and in detail introduced was changing plants the locoed pipe line preliminary centralism processing method and the matters needing attention
摘要濕陷性黃土在中國華北、西北地區廣泛分佈，其濕陷性特徵常對各類建築物和構築物造成危害，本文介紹了濕陷性黃土管道地基處理的幾種常用的方法。 -
Stuck - pipe factor
卡鉆因子 -
The paper not only studies the mircostructure, malcrostracture features of ore - controlling fault system and kinemafic analysis but also deeply states the breccia pipe structure. lt considers that yinshan lead - zinc deposit is controlled by three - level structure condition. the ne - trending left - laterl structure movement is mainly controlling factor
在野外調查基礎上結合實驗測試，對礦床的礦體、礦石、礦床成因等特徵進行了研究，深化了礦床多階段多期次復合成因的認識，發現了含礦斑巖體。 -
When the rotation has the same direction with the axial velocity, the effect of rotation enforces the intensity of secondary flow and the heat convection, the friction factor and the nusselt number increases as f increase ; when the rotation has the opposite direction with the axial velocity, the flow structure becomes more complicated, for f = 1. 2, the complicated structure of secondary flow generates, the friction facior and nusselt number almost has the same value of stationary straight pipe
當旋轉方向和主流方向相同時，旋轉的作用加強了二次流的強度，使得管道摩擦系數變大，管道換熱效果增強；當旋轉方向和主流方向相反時，管道內流動結構變化十分明顯， f - 1 . 2時，流動結構最為復雜，摩擦系數降至最低，換熱效果最弱。 -
Depending on different natures of materials to be conveyed, the pipe inner surface can be lined with a metal either the same as or other than the pipe base metal by means of the plastic deformation complex technique so as to meet the following requirements : 1 ) increasing both corrosion resistance and wear resistance of the pipe inner surface ; 2 ) reducing the friction factor and the resistance against the materials being conveyed in the pipe line ; 3 ) easy processing, installation and maintenance of the pipe line
根據輸送物料的性質，採用塑性變形復合方法在管道內壁鑲襯異種或同種金屬管，可以實現以下目的：增強管道內表面的耐腐蝕性和耐磨性；降低摩擦系數，減小物料的輸送阻力；便於管道的加工、安裝和維修。
分享友人