沿垂線 的英文怎麼說

中文拼音 [yánchuíxiàn]
沿垂線 英文
plumb line
  • 沿 : 沿名詞（水邊） water's edge; bank
  • 垂 : Ⅰ動詞1 （東西的一頭向下） hang down; droop; let fall 2 [書面語] （敬辭 多用於長輩、上級對自己的行...
  • 線 : 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...
  1. In the bed load layer, the stream - wise particle velocity profile follows the log - law, and the average is 8. 2u *

    在推移區內，顆粒的縱向速度沿垂線接近對數分佈，平均運動速度為8
  2. The direction is normal to the line of centres, i. e. motion is circumferential.

    該方向垂直於中心連線，即運動是沿圓周方向的。
  3. We can use the mm5 model in definite time, definite area weather forecasting. we conclude that : : the moving route of this necw in its developing progress was direct - south along latitude, the cold air is rough, and just this made the rough vertical velocity ; the necw southern moving and conflicting with the west pacification sub - tropical high makes rough jet steam. the plenty south - west warm and wet air made by the jet stream gave the rainstorm demanded vapor ;. the rough vertical velocity by jet stream is a main reason in this rainstorm ; the mm5 model uses four - direction analysis data as its input, this avoids some errors occurred in observe and transfer, thus made the result more useful

    綜合分析認為： （ 1 ） 、這次冷渦在其發生發展過程中，其移動路徑是沿經圈直線南壓，攜帶的冷空氣勢力較強，形成槽后較強的垂直運動； （ 2 ） 、西太平洋副熱帶高壓偏北位置與東北冷渦南壓形成的急流軸，把源源不斷的西南暖濕氣流輸送到遼西地區，也就是急流軸的左前方位置，為這次暴雨的產生提供了充足的水汽來源； （ 3 ） 、低空急流不但為暴雨輸送水汽，其造成的較強的垂直環流也是產生強降水的一個主要原因； （ 4 ） 、 mm5模式以四維同化資料作為初始場，最大限度地避免了觀測誤差可能造成的積分不穩定，提高了模擬結果的參考價值。
  4. It is mainly by analyzing the features of sediment concentration distribution in vertical in this paper, and then the problems of effect of headwork gates on sediment prevention, relation between distribution of sediment deposition in irrigated areas and its treatment and utilization, estimating the influence of withdrawing water and sediment on channel deposition and erosion in lower yellow river, and treatment and utilization of the sediment entered into canals are discussed

    本文主要從分析計算含沙量沿垂線分佈特點，探討渠首防沙的作用，分析灌區泥沙淤積分佈特性與泥沙處理利用的關系，分析計算引水引沙對黃河下遊河道沖淤影響及入渠泥沙的處理利用等問題。
  5. Drop line vertically down and read flow rate from bottom of chart

    沿著垂直線向下，從圖表底部讀出流量。
  6. In this paper, some characteristics of flow movement and sediment transport are analyzed by using the flume experiment data. the cross section of compound channel can be divided into four regions : the undisturbed region in main channel, the interactive region between channel and plain, the undisturbed region in flood plain and the boundary region. in the undisturbed regions, the distribution of longitudinal velocity along the depth has the feature of lograithmic. whereas, in the interactive region, the longitudinal velocity does not obey the logarithmic distribution law, but it can expressed as a revised logarithmic function by using a wake function. on the basis of the kinematic equation the velocity distribution of transverse velocity is obtained. in the boundary region, the longitudinal velocity obeys the law of parabolic distribution. furthermore, according to the simplified diffusion equation, the transverse distribution of sediment concentration in the interactive region is deduced. the analysis is in good agreement with the measured data

    本文根據漫灘水流的運動特點，將漫灘水流的復式斷面分為主槽平衡區、灘槽交互區、灘地平衡區及邊壁區等4個區，並給出了各區寬度的經驗公式.根據灘槽交互區垂線流速分佈的變化特點，提出了附加尾流函數的對數流速分佈公式.在簡化水流運動方程和泥沙擴散方程的基礎上，對灘槽交互區內垂線平均流速及含沙量沿橫向分佈進行了理論分析，提出了反映灘槽水流動量交換強度的橫向渦量粘性系數及橫向擴散系數的表達式，得到了漫灘水流垂線平均流速及含沙量沿橫向分佈的解析解，並與實測資料吻合較好
  7. Through the flume experimental research, the velocity distribution formulas for rectangular open channel have been found, including parabola form of velocity distribution on the vertical and power form of mean velocity distribution on the transverse direction ; meanwhile, the means of ascertaining correlative coefficient have been given in this paper

    摘要通過對明渠流速的水槽試驗研究，建立了矩形斷面明渠沿垂線流速的拋物線分佈公式和橫向平均流速的乘冪函數分佈公式，同時給出了相關系數的確定方法。
  8. There is no one in this world, who can love me like you do, that is the reason that i,

    在這一秒間回你身選我沿著日出的垂直線不管流了多少汗水
  9. By analysis the results of in - situ monitoring in the process of pipe jacking, the law of surface deformation perpendicular to pipe axis and along pipe axis, the sub - surface movements perpendicular to the axis of pipe and along the axis of pipe are studied

    通過對頂管工程現場測試數據的分析，研究了頂管施工引起的管道周圍土體的移動規律，包括地面橫截面和縱向截面變形規律、深層土體沿管道軸線方向和垂直於管壁方向移動規律。
  10. The results showed that most multiaxial fatigue cracks were initiated and propagated along the direction of maximum shear plane or on the direction perpendicular to the tubular specimen ' s axis

    研究表明，多軸疲勞裂紋主要是沿最大剪切平面或垂直於管形試樣的軸線方向擴展。
  11. There are two patterns for vertical concentration distribution too

    懸浮顆粒沿垂線的濃度分佈類型也可以分為型和型。
  12. The vertical distribution of particle concentration is nearly linear, and the concentration at the bottom is 3 times larger than that at the top, which indicates that ca, the reference concentration of suspended particles in einstein ' s equation, is larger

    2u * ；顆粒的濃度沿垂線基本為線性分佈，底部比上部大3倍左右，說明einstein取的懸移質參考濃度ca會有所偏大。
  13. The thesis " main studies and achievements are as follows : 1. under the assumption of double - layer computational mode, the governing equations for the horizontal 2 - d stratified density current is derived by integrating the 3 - d fundamental equations along the flow depth. 2

    在異重流雙層計算模式下，從三維水沙基本方程出發，利用數學工具沿垂線積分，推導得出了平面二維異重流上、下兩層水體的水沙運動基本方程。
  14. The vertical section of the radar picture along the direction of the approach path marked a - b in figure 10, together with the winds experienced by the plane, is given in figure 11

    圖11展示雷達圖中沿降落航線的垂直切面圖10中的a至b以及航機遇到的風向和風速。
  15. The vertical section of the radar picture along the direction of the approach path ( marked a - b in figure 10 ), together with the winds experienced by the plane, is given in figure 11

    圖11展示雷達圖中沿降落航線的垂直切面（圖10中的a至b ）以及航機遇到的風向和風速。
  16. Consequently, heat conduction along the magnetic field lines on the surface of a magnetar is far more efficient than the heat conduction perpendicular to the magnetic field lines. this may lead to a profound effect on the thermal evolution as well as the shape of the x - ray pulse of a magnetar

    結果，沿著磁星表面磁線的傳熱作用較與磁線垂直的傳熱作用為佳，這現象對磁星的熱演化和x射線脈沖的形狀有著很大的作用。
  17. In this paper, a quasi - 3d model of nearshore wave - induced currents and long waves is established based on the combination of an averaged integration of surface wave - induced currents equation along water depth, a 2d equation for the solution of vertical structures of the currents and a nonlinear parabolic approximate wave reflection - diffraction equation of mild slope

    本文建立了將沿水深積分平均的平面波生流方程和求解波生流垂向結構的二維方程與非線性拋物型近似緩坡波浪折射-繞射傳播方程相結合的完整的準三維的近岸波浪引起的水流及其長波的模型。
  18. The scenic spot is located on the southern coast of ping chau with a long vertical cliff along the coast

    這個自然景點在平洲南端，垂直而下的峭壁沿海岸線伸展。
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