速度梯度 的英文怎麼說

中文拼音 [sùdùtīdù]
速度梯度 英文
gradient of velocity
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 梯 : Ⅰ名詞1 （梯子; 樓梯） ladder; stairs; steps; staircase 2 （姓氏） a surname Ⅱ形容詞（形狀像樓梯的...
  • 速度 : 1. [物理學] velocity; speed; blast; bat 2. [音樂] tempo3. （快慢的程度） speed; rate; pace; tempo
  1. Differential rates resulting from temperature gradients in the material introduce stresses which can't be removed by later heat treatment.

    由材料內部的溫度梯度引起的速度差將導致產生應力，這種應力是無法用以後的熱處理來消除的。
  2. The reaction rate is limited by the concentration gradient of oxygen in the sample.

    反應速率受試樣中氧濃度梯度的限制。
  3. Prophase studies about the coagu - flocculation mechanism lay particular stress on collision mechanism and the theory of velocity grads, but reseau coagu - flocculation can ' t inosculate in the practical applications

    前期對混凝機理的研究偏重於碰撞機理和速度梯度理論，但實際應用中的網格混凝不能吻合。
  4. If increasing drawing interval, the movement and flow range of top coal will enlarge, and the velocity gradient on flow cross - section will diminish, so that it is good for controlling the flow rate of thin sand among loose top coal

    研究表明，加大放煤步距，頂煤運移流動的范圍變大，流動斷面內速度梯度變小，有利於控制細砂的下竄速度。
  5. 2 ). it has a great temperature gradient along the height in hot and cold plenums of cefr in steady state. the buoyancy force cannot be ignored because the flow velocity is low in the whole flow regions

    冷熱鈉池在穩態工況下沿高度方向有很大的溫度梯度，整個流動區域內的流速較低，浮升力的影響不可忽略； 3
  6. The saffman force does not affect the axial velocity of the flow, while it change the concentration of the particle. the gas - particle two - phase flows in the present of temperature were also numerical simulation

    討論了絕熱、有溫差和添加熱泳力三種情況下的兩相流場，分析了溫度梯度、湍動能、軸向速度和顆粒濃度的變化。
  7. Both species grew poorly in the culture medium absent of salt, especially to a. corniculatum. moderate salt stress ( from 5 to 20 ) can stimulate the growth of both species, and the optimum salinity for growth was from 10 to 15. when the substrate salinity was higher than 30, stem height, root length, dry mass increment, net photosynthetic rate fell remarkably for both species

    溫室內人工鹽度梯度栽培下，木欖幼苗地上、地下部分形態和生物量的增長均表現為低鹽促進和高鹽抑制，以10 15鹽度下最適合木欖幼苗的生長；鹽度從10增加到50時，木欖幼苗的凈光合速率、氣孔導度和蒸騰速率均隨之下降。
  8. Result of numerical simulation shows that the grads of continuous phase " s velocities decreases with the presence of microbubble of which the diameter is 100 / / w, the profiles of air volume fraction in the boundary layers is similar to triangle or echelon, affected by interaction among the particle, there is a saturated air fraction, within the scope of saturated air fraction, increasing the air injection ratio can accrete the friction reduction ratio, under the condition of same air injection ratio, the free - steam velocity is larger, the effect of friction reduction is worse

    計算結果表明，直徑為100 m的微氣泡能減小近壁面連續相的速度梯度；微氣泡在邊界層中的濃度分佈近似為三角形或梯形分佈；受粒子間相互作用的影響，存在一飽和濃度；減阻率隨噴氣量的增大而增大，直至飽和噴氣量，此後，增大噴氣量，壁面摩擦阻力變化不大；相同噴氣量下，來流速度越大，減阻率越低。
  9. It was found that the interface morphology of ni, cr, al - tac eutectic in - situ composite evolved from plan to cell and then to dendrite with the increase of solidification rate, if the gradient retained constant. in the same time, the eutectic microstructure also evolved from rod to cell and then to dendrite

    本工作發現，在溫度梯度基本保持不變的條件下，隨著凝固速率的增大， ni ， cr ， al - tac共晶自生復合材料的凝固界面由平界面向胞狀及枝狀界面逐漸轉化。
  10. The maim factors affecting the velocity profiles are the viscosity near the bed, particle grid resistance and the density gradient

    影響流速分佈的主要因素有底部粘度、顆粒格柵阻尼和密度梯度。
  11. Study on the rapid purification of rat islet cells with push - type tube by modified mono - density gradient method

    推進式離心管結合單密度梯度法快速純化大鼠胰島
  12. They comprise therefore cardiac frequency, speed, slope, duration, power, number of series and repetitions, weight from sollevare

    因此，運動負荷包括心率、速度、梯度、持續時間、功率、組數和重復次數、待舉重量。
  13. In crystal growth experiment, aggas2 crystal was growen in special quartz ampoule by crucible descending method ( b - s method ). the equipments were used, which consist of a two - zone vertical growth furnace whose temperature gradient is tunable, a descending device with decelerating rate of 1 : 2000, a controlling system of electy and a temperature testing system using thermal couples

    晶體生長實驗中，我們利用上下溫度梯度可調的二溫區管式生長爐， 1 2000減速比的旋轉下降系統，電氣控制系統和密集適時測溫系統等，在特殊形狀的石英生長安瓿中，採用坩堝下降法（ b - s法） ，以合成的aggas _ 2多晶原料進行晶體生長。
  14. Meanwhile, we adopted air distribution performance index, temperature gradients and average velocity to evaluate and compare room air distribution under various air volumes

    同時，用空氣分佈性能指標、溫度梯度以及室內平均速度對不同送風量下的室內氣流分佈進行了評價和比較。
  15. It has been found that the temperature gradient ahead of the solid / liquid interface is almost linearly increased with the increasing of withdrawing rate

    實驗發現，熔區內固液界面前沿的溫度梯度隨著區熔速率（ r ）的增加呈線性增加。
  16. The finite element method ( fe '. i ) is adopted to analyze the effects of the numbers of coil turns, current intensity and current frequency upon the rate of joule heat generation in details. the thermo - radiation analytical countermeasures of various types are adopted to carry out the numerical analysis of the effects of the crucible with different shapes and sizes and the blind holes with different depths opened in the tops of crucibles as well as coil positions upon the thermal field distribution whereby solving the main problem of field the thermo - field design of the induction - heating sic crystal growth system. a new combination idea of the thermo - field design obtained by means of the united design of the thermo - insulator and blind holes has been presented

    採用有限元分析方法對線圈匝數、電流強度、電流頻率等對焦耳熱產生速率的影響進行了詳細的分析討論；採用不同的熱輻射分析策略，對不同坩堝形狀、坩堝頂部開設不同深度的盲孔以及線圈的位置等對熱場分佈的影響進行了數值分析，解決了感應加熱碳化硅晶體生長系統熱場設計的主要問題，提出了通過絕熱層與盲孔的聯合設計獲得所需熱場設計的思路，給出了根據軸向溫度梯度的波動對線圈位置實行動態調節以控制熱場的理論依據。
  17. A height - gradient - based obstacle detection algorithm is proposed to process the height images outputted by stereo vision. the obstacles in scenes can be detected exactly and quickly in this way

    立體視覺演算法通常輸出的是高度圖，本文提出了一種基於高度梯度的障礙檢測演算法，能有效且快速的檢測出場景中的障礙。
  18. However, the intensity gradient ( force ) of the diffracted light of the semi - gaussian beam is far smaller than that of the evanescent - light wave, so its spontaneous emission probability is greater than that from the evanescent - light one when the normal velo city of the incident atom is greater

    然而，因為半束蘭失諧高斯光束衍射光場的強度梯度力遠小於消逝波光場，所以當入射原子速度較大時，原子在半束蘭失諧高斯光束衍射光場中的自發輻射幾率要大於消逝波光場。
  19. It is found that drag reduction occurs with adequate wavenumbers and grows with an increase of h. the mechanisms are revealed through variations of velocity profile and the decrease of wall shear stress

    分析減阻機理是流速分佈曲線及近壁區速度梯度介於層流與湍流之間， h值增大引起壁面剪應力顯著下降。
  20. Therefore, we can conclude that the velocity gradient of fluid around a fiber is the key for its rotation

    於是得出結論：纖維附近流體的速度梯度是導致纖維旋轉的主要因素。
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