度量系數 的英文怎麼說

中文拼音 [dùliángxìshǔ]
度量系數 英文
metric coefficient
  • 度 : 度動詞[書面語] （推測; 估計） surmise; estimate
  • 量 : 量動1. （度量） measure 2. （估量） estimate; size up
  • 系 : 系動詞（打結; 扣） tie; fasten; do up; button up
  • 數 : 數副詞（屢次） frequently; repeatedly
  • 度量 : 1. （計量長短） measure; metric; mensuration 2. （寬容人的限度） tolerance; magnanimity
  • 系數 : [數學] coefficient; ratio; modulus; quotient; factor
  1. Many factors have effect on irrigation uniformity. with the growing of pressure, how is irrigation uniformity of trickle irrigation varying on different condition of the diameter of drip line, the distance of emitters, the length of drip line, the style of emitters, the flux ratio of emitters and the face gradient of little irrigation district. the consequence shows that pressure has puny effect on irrigation uniformity

    滴灌系統的灌水均勻度受眾多因素的影響，本文通過毛管的管徑、滴頭間距、毛管的管長、灌水器的類型和灌水器的流量系數不同的情況下，灌水均勻度隨壓力水頭變化模擬結果顯示，壓力水頭對灌水均勻度影響非常小。
  2. The results showed that the discharge coefficient of film cooling hole was greatly increased with the increase of blow ratio when the blow ratio m is lower, buta it had a little increase with the increase of m when m is larger

    實驗結果表明，在吹風比較小時，隨吹風比的增加流量系數大幅度增加，當吹風比較大時，隨吹風比的增加流量系數增幅減小。
  3. Eev should be selected for various refrigeration systems according to the thermal properties of refrigerants ; the discharge coefficient of eev is sensitive to the aperture and impulse quantity of eev ; when the eev structure is made, the discharge coefficient goes up with the lowering of evaporation temperature or goes down with the hoisting of the condensation temperature. it is le

    對于不同工質的冷藏集裝箱製冷系統，電子膨脹閥應該根據具體製冷劑的熱力性質選取；電子膨脹閥流量系數對孔徑和脈沖數比較敏感；在結構固定時，流量系數隨蒸發溫度的降低而升高，隨冷凝溫度的增加而增大，受過冷度變化的影響較小；電子膨脹閥的容量受孔徑影響最大。
  4. On the basis of these results, the relations of total - pressure recovery coefficient or flow coefficient and flight mach number, angle of attack and the second movable wedge angle of the inlet have been founded by hypersurface fitting, then the mathematical model of the inlet is established

    根據流場計算結果並利用超曲面擬合方法建立了進氣道總壓恢復系數、流量系數與飛行馬赫數、進氣道攻角及二級可調斜板角度之間的關系，由此得到了二元混壓式超聲速進氣道數學模型。
  5. ( 2 ) on the leading edge, the film cooling effectiveness at the zone immediately downstream of the cooling holes is affected by blowing ratio and mainstream reynolds number, while the effects are not important in the downstream zone far from the cooling holes. ( 3 ) on the front half of pressure surface, the effectiveness increases with decreasing blowing ratio at the downstream near the cooling row and it is contrary at the downstream far from the cooling row. ( 4 ) on the rear pare of the pressure surface, the effectiveness decreases with increasing blowing ratio and does not vary so much downstream in the cases of higher blowing ratio

    研究結果表明葉片吸力面端壁附近區域壓力系數分佈呈現出較強的三維特性，動葉吸力面尤其明顯；氣膜孔流量系數隨吹風比的增加而增大，在高吹風比情況下，流量系數逐漸趨于常數；在不同型面區域，冷卻效率分佈有較大的差異，而且吹風比與主流雷諾數的影響程度也不盡相同；低吹風比下，孔出口下游附近可以得到較好的冷卻，中、高吹風比下，冷氣射流在加速流動主流的作用下返回壁面進行二次冷卻，孔下游較遠區域可以得到較好的冷氣覆蓋。
  6. Then the thermal visualizations of jet impingement cooling with single or double row holes inside semi - enclosed ribbed channel are measured by using infrared camera and the effects of flow and geometry parameters on convective heat coefficients are obtained. the results show that : the impingement cooling effectiveness of ribbed surface is affected greatly by the jet - to - surface spacing, and the best effectiveness is achieved under the jet - to - surface spacing equals to 1. the correlation formulas of impingement heat transfer characteristics to the parameters are finally concluded and in good agree with the experiment data

    最後，對單排、雙排沖擊孔試驗板在半封閉通道展開了流量系數的研究，在變化各種幾何因素及流動因素的情況下由實驗得出了沖擊孔流量系數值，討論並分析了各種因素對流量系數的影響程度，建立了沖擊孔流量系數的準則關系式，與實驗結果對比表明:該準則關系式與實驗實測數據吻合較好，精度較高，有較高的工程應用價值。
  7. The model of variability of submergence depth is established based on the law of volume balance, and the changing trends of parameters like submergence depth etc are analyzed. according to the principle of supply and discharge balance, the method to predict oil yield is presented. subject to different objective functions, the corresponding optimum combinations of suction parameters are analyzed, and the importance of choosing objective function to optimum combination of suction parameters is emphasized

    本文研究了油井流入動態關系，根據井筒內液量平衡原理，建立了沉沒度變化的數學模型，分析了沉沒度等參數變化規律；根據油井供、排平衡原則，得出了抽油泵排量系數相對穩定狀態下產量預測的關系；分析了不同目標函數下，油井抽汲參數的組合效果，指出了目標函數選取對參數合理組合的重要性。
  8. The results derived from comparison experiments indicate that various performances of the diesel engine adopting the best project is better than those of the previous intake manifold. especially at the rating, the volumetric efficiency and power increases by about 5 %, exhaust temperature decreases by 50, 4. 3g / kw. h fuel consumption is reduced, o. srb smoke emission is cut down

    試驗表明：該方案與原機進氣系統方案相比，其各項性能指標均有不同程度的改進：在標定點的充量系數和功率提高了將近5 ，排溫下降了50 [ ] ，燃油消耗率減少了4 . 3 [ g kw
  9. Statistical characteristic of fatigue strength of contact wires was obtained by comprehensively considering such coefficients as stress concentration, size and surface quality

    綜合考慮了接觸線應力集中系數、尺寸系數、表面質量系數和材料疲勞強度的影響，得到了接觸線疲勞極限的統計特徵。
  10. From the point of view of risk, a index system of risk assessment of winter wheat losses caused by drought was established, including the meanings, token models and estimate methods of risk index of natural water deficiency rate, risk index of yield reduction rate and trending vector coefficient of disaster resistance capability, then on the base of these indices, the comprehensive risk index model of losses caused by drought was established and regionalized. the results indicated : the high risk region included the middle north of shanxi, some of middle of shaanxi and some of hebei in east ; the higher risk region included some of middle of shaanxi, the tangshan region and some of west of hebei ; the moderate risk region included the middle of s

    從風險的角度，建立了冬小麥乾旱災損風險評估的指標體系，包括自然水分虧缺率風險指數、減產率風險指數和抗災性能趨勢向量系數的意義、表徵模式和估算技術方法，在此基礎上構建了災損綜合風險模型，並對模型參數區域化，結果表明：冬小麥乾旱災損高風險區在陜西中北部、山西中部的部分地區和河北滄州的部分地區；較高風險區在山西中部的部分地區、河北的唐山地區和西部的部分地區；中風險區在陜西中部、山西南部、河北滄州的大部分地區；低風險區在陜西中南部、河南中北部、北京市、天津市、河北中南部和山東省。
  11. Firstly, the notion of the form as a = > b [ s %, c % ] is researched and some algorithms are discussed. an algorithm named a progressive refinement approach to spatial data mining is discussed in detail. and a new thought of mining spatial association rule based on spatial data cube is brought forward

    闡述了a = > b [ s ， c ]形式的空間關聯規則的基本概念和演算法，詳細研究了一種逐步求精的空間關聯規則挖掘演算法的實現；提出一種基於空間數據立方體的空間關聯規則挖掘的新思路；將空間統計分析引入空間關聯規則挖掘領域，研究了空間權重矩陣、空間自相關、空間關聯等的度量函數，並利用空間統計分析技術發現空間相關關系和空間關聯規則。
  12. Sensitivity analysis on the change of multi - coefficient

    線性規劃多變量系數變化的靈敏度分析
  13. Dense lsco ceramic targets without cracks were prepared with cobalt nitrate excess coefficient 1. 05 and pressing pressure 8mp, sintered at 1350 for 3h. the xrd spectrum is consistent with the standard cards of lsco powder

    通過大量實驗，確定了最佳燒結工藝:燒結溫度為1350 、保溫3小時，硝酸鈷過量系數為1 . 05 ，壓制壓力為8mp 。
  14. Through simulation the dissertation analyzes the effect of connect stiffness, load inertia, pressure - flux coefficient to the active load system and surplus force ( torque )

    通過模擬，分析了連接剛度、負載慣量、總的壓力流量系數對主動加載系統和純多餘力的影響。
  15. Loading grads is another non - structure coefficient influencing loading characteristics except loading frequency. the low grads characteristics are analyzed deeply by simulation, and found that applying structure invariance principle with acceleration compensation can reduce loading grads effectively. the dissertation also simulates and compares the systems with connect hole of different size, and founds that the size of connect hole has an optimized value

    加載梯度是除了加載頻率之外另一個影響加載性能的非結構上的參數，論文作了大量的模擬分析來研究小梯度加載特性，得出了具有加速度補償的結構不變性原理可以有效的降低小加載梯度時的多餘力矩的影響;通過對具有不同的總壓力流量系數的系統的模擬比較，得出了連通孔的大小在不同工況下存在一個最優的值，其開度需要合理的選擇。
  16. Using the first order and the second order derivative information of the network error function to the learning rate factor / / and the momentum factor ?, dynamic optimization of the learning rate factor / / and the momentum factor ? is obtained during the network training process, which efficiently speeds up the network learning rate

    並利用網路誤差函數對訓練速率系數和沖量系數的一階和二階導數信息，在網路訓練過程中動態優化調整訓練速率系數和沖量系數，有效地加快了網路的訓練速度。
  17. The statistics on the measured data in a oil - field shows the submergence depth and discharge coefficient are very low, some key measures for improving discharge coefficient and sucker rod pump performance are presented ; the applications of discharge coefficient to practice are illustrated with examples

    通過對某具體油田區塊測試數據分析，指出該區塊油井存在沉沒度、排量系數低的現象，提出了提高抽油泵排量系數、改善工作性能的措施。舉例說明了排量系數計算在生產管理中的應用。
  18. The analysis methods that the system adopts are introduced from the view of time - domain, frequency - domain and time - frequency - domain. emphasis is focused on the correlation integral analysis method. the measurement parameter of signal nonstationarity defined on the basis of correlation integral is discussed, and the feasibility that it is used to diagnose the faults of dynamic nonstationarity as the characteristic parameter is also investigated with a case

    本文將系統中所實現的常規分析方法從時域分析、頻域分析和時頻域分析三個角度分類進行了說明，重點介紹了相關積分分析方法，探討了基於相關積分定義信號非平穩性的度量參數，並結合實例探討了該參數作為特徵參數診斷動態過程非平穩類故障的可行性。
  19. As a general rule, an adequately sized globe valve ( i. e. with pipe velocity between 15 to 25 ft / sec for water and 200 to 300 ft / sec for steam ) should not be throttled down below 35 % of its maximum full open cv capacity ( approximately 20 % of full stroke )

    一般而言，通徑足夠大的截止閥（例如管道內水流速度在15至25英尺/秒之間，蒸汽流速在200至300英尺/秒之間） ，節流后的流量不應該小於完全開啟狀態流量（流量系數大約為全沖程的20 % ）的35 %以下。
  20. Based on the svs characteristic analysis of image matrix, a visually recognizable binary image watermark is embedded into maximal singular value coefficient in block - based svd transform domain of the cover image. here we brought forward two primary schemes : one need original signal and the other is blind ( without the original cover ). experimental results show that our schemes can extract reliable copy of the hidden watermark from images that have been significantly degraded or altered through several common geometric distortions and signal processing operations

    本文基於圖像矩陣的svd奇異值分解特性分析，提出了在新的svd變換域中進行的數字水印演算法，水印信息嵌入到分塊變換的最大奇異值分量系數中，應用混沌變換加密和空域置換，改善了空域性能，安全性高；利用圖像分塊矩陣的奇異值分解穩定性好的特點，採用圖像內容自適應方法計算水印的嵌入強度，增強了演算法的穩健性；採用二值圖像作為有意義水印進行嵌入和檢測，水印在感知上是可視的。
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