drag the field 中文意思是什麼
drag the field
解釋
低空通過機場-
Firstly, based on the present research all over the world, a 3d quasi - single phase model is built together with k - equations. the special feature of this model is taking account of the influence of interaction between liquid and gas, that is to say, the influence of interphase drag force, lifting force perpendicular to the relative velocity, virtual mass force and gas or liquid volume fraction in the fluid field have been considered. a 3d two - fluid model is also built in order to describe more accurately the fluid flow on distillation trays by comparing the computational results of quasi - single phase mathematical model with of two - fluid mathematical model
本文在國內外已有的研究基礎上，首先建立了以k - （封閉模型為基礎的三維擬單相流模型，該模型的特點在於充分考慮了氣液兩相間相互作用的影響，即計入了相間曳力、橫向升力、虛擬質量力和氣、液相含率對流場的影響；並建立了塔板三維雙流體模型，主要目的是通過對比擬單相流數學模型、雙流體數學模型的計算結果，建立能夠準確描述塔板上流體流動的數學模型。 -
According to dynamical characteristic of the bubble motion in the flow field, and under the assumptions of isothermal system without interior heat source, uniform bubble size, and ignoring surface tension, the mathematical expressions for interfacial momentum exchanges have been deduced which include drag, virtual mass force, and lift
針對氣液泡狀流中氣泡運動力學特性，在系統絕熱、無內熱源、忽略表面張力、氣泡尺寸均一前提下建立了氣液相間曳力、虛質量力、升力的數學模型表達式。 -
Frogs may bellow louder than bulls, but they cannot drag the plough in the field not turn the wheel of the winepress, and of their skins you cannot make shoes
青蛙的叫聲也許比牛更響亮，但它們卻不能拉動田中的犁耕，不能轉動酒坊里的碾磨，青蛙的皮張也無法製成靴子。 -
Extreme ultraviolet radiation and x - ray created by magnetic field around the sunspots also cause the earth s atmosphere to heat up and expand. this will create additional drag to satellites or space shuttles orbiting at low altitudes and eventually pull them out of orbits earlier than expected
太陽黑子附近的磁場所產生的遠紫外輻射和x射線，使地球大氣溫度上升並且膨脹，這對在較低軌道運行的人造衛星或太空梭帶來阻力，令它們比預期提早偏離軌道。 -
If a strong electric field accelerates a high - speed electron, the drag force becomes smaller, which allows the electron to move even faster, thereby reducing the drag force further, and so on
如果有強大電場使高速電子加速，則阻力的降低使該電子移動得更快，進而降低阻力，以此類推。 -
Drag the field from the data sources window onto a column or row header in the matrix
將「數據源」窗口中的欄位拖至矩陣中的列標題或行標題上。 -
If you drag the field into a cell in a matrix column that does not have a header for example, the details row, the name of the field automatically appears in the column header
如果將欄位拖至沒有標題的矩陣列中的單元（例如，詳細信息行） ，則該欄位的名稱將自動顯示在列標題中。 -
In this application, the lorentz force generated by the interaction between the current in the wire and the geomagnetic field produces an electro - dynamic drag leading to a fast orbital decay. in this paper, we make an intensive study of the process of de - orbiting using electro - dynamic tether system. the concrete work includes : firstly, i have studied the basic principle of how to generate the electro - dynamic drag, modeled via accuracy geomagnetism, made a concrete analysis of the de - orbiting duration, the magnitude and direction of electro - dynamic drag under the action of the dipole and accurate geomagnetic models, set up a counterbalance between electro - dynamic torque and gravity gradient torque, emulate the de - orbiting process of spacecraft, and compared the change of six orbital factors and the de - orbiting duration under the action of the dipole and accurate geomagnetic models
本文對基於電動力纜繩的航天器離軌過程進行了深入研究，具體工作如下:首先，本文研究了電動力纜繩產生電動力拉力的基本原理，建立了精確地磁場模型;分別在偶極子模型和精確地磁場模型作用下，對電動力拉力的大小、方向、離軌時間及電動力纜繩傾角的大小進行了計算分析;建立了電動力力矩與纜繩系統重力梯度力矩的平衡關系;分析了電動力力矩為系統提供能量的原理;最後分別在偶極子地磁場模型和精確地磁場模型作用下，對受電動力纜繩作用的航天器的離軌過程進行模擬，分析了在不同精度地磁場模型下，航天器離軌過程中各軌道參數的變化情況，並比較了不同模型對離軌時間的影響。 -
Based on theoretical analysis, microbubble drag reduction is due to structure change of turbulent boundary layer caused by the microbubbles. experiments testify microbubble drag reduction for turbulent boundary layer, as well as bubble size, main flow velocity, etc. affecting the reduction ; with proper flow field model, turbulent model and difference scheme, numerical methods simulate the effect of boundary layer and bubble numbers on dray reduction
理論分析提出微氣泡降阻機理在於其引起湍流邊界層結構的變化；實驗證明了微氣泡對湍流邊界層的降阻作用以及氣泡尺度、主流速度等對降阻作用的影響；數值方法利用適當的流場模型、湍流模型和差分格式，模擬邊界層和氣泡數等對降阻的影響。 -
To bind data to a matrix, drag a field from the data sources window onto a matrix cell
若要將數據綁定到矩陣，請將「數據源」窗口中的欄位拖至矩陣單元中。 -
Remember to use the middle button to drag the file name to the selection entry field
記住使用鼠標中鍵將文件名拖拽到selection entry欄位中。 -
First, select the file you want and then, holding the middle button down, drag the file into the field
首先選擇需要的文件，然後按住鼠標中鍵，再將該文件拖拽到相應欄位中。 -
3. drag the divider bar to the right to view the act. work field
3 .向右拖動分割條以查看「實際工時」域。 -
Drag the shift field onto the columns textbox in the second column, first row of the matrix
將shift欄位拖到第二列的detail行上，使其位於dept欄位的旁邊。 -
Drag the field you want from the data sources window to your document
將所需的欄位從「數據源」窗口拖動到文檔中。 -
Property. the value is created for you automatically when you drag the field to the report
在您將欄位拖至報表中時，會自動為您創建值。 -
If you drag the field onto a cell in a table column that does not have a header for example, the details row, the name of the field automatically appears in the column header
如果將欄位拖到沒有標題的表列中的單元上（例如，詳細信息行） ，則該欄位的名稱將自動顯示在列標題中。 -
Report designer displays a bar on the top or bottom of an existing column header, or to the left or right of an existing row header, depending on where you drag the field
報表設計器將根據將欄位拖至的位置，在現有列標題的頂部或底部，或者在現有行標題的左側或右側，顯示一個條形。 -
For example, to create a new dynamic column that contains an existing dynamic column, you would drag the field to the existing column header, position it so that a bar is displayed on the top border of the header cell, and then drop the field
例如，要創建包含現有動態列的新動態列，會將欄位拖至現有列標題上，調整其位置，使條形顯示在標題單元的上邊框，然後放下欄位。 -
It adopts overseas advanced technology, locating the leading level in the field of domestic drag membrane evaporator
離心式刮板薄膜蒸發器採用國外先進技術，在國內刮板式薄膜蒸發器領域內具有國際水平的領先地位。
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