unit surface area 中文意思是什麼

unit surface area 解釋
單位表面積
  • unit : n 1 個體，一個，一人。2 （計值、組織、機構）單位；單元；小組，分部；【軍事】部隊；分隊。3 【機械...
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  • area : n. 1. 面積；平地；地面。2. 空地；〈英國〉地下室前的空地。3. 地區，地方；〈比喻〉區域；范圍。
  1. A unit of retinal illumination, equal to the amount of light that reaches the retina through 1 square millimeter of pupil area from a surface having a brightness of 1 candela per square meter

    光度視網膜亮度單位，相當于每平方米有一燭光亮度的表面，通過一平方毫米的瞳孔區域，到達視網膜的光線數量
  2. The method of obtaining high concentration of na2feo4 solution by quick electrolysis mainly contains four aspects : adoption of either a diaphragm or an ionic membrane electrolytic cell in which a thin anodic cell lying between the two cathodes, ( 2 ) using an iron anode that has larger specific surface area, ( 3 ) keeping suitable concentration of naoh in the anodic cell, adoption of lower current density and higher electrolyzing speed. the practical technique parameters follow a s below : the naoh solution of 14 - 16mol / l, the temperature of 303 - 308k, the surface anodic current density of 300a / m2, the unit electrolyzing speed of efficiency larger than 6. 0a / l

    快速電解獲取高濃度na _ 2feo _ 4溶液的方法，主要包括四個方面：採用兩陰極室夾一厚度較小的陽極室的隔膜（或離子膜）電解槽；使用比表面積較大的鐵網陽極；保持陽極室中有適宜濃度的濃naoh溶液；採用較低的電流密度和較高的電解速度。具體工藝參數是： 14 16mol / lnaoh溶液、溫度303 308k 、表觀陽極電流密度300a m ~ 2 、有效單位電解速度6 . 0a / l 。
  3. Then based on kirchhoff approximation theory, the formula of the coherent and incoherent scattering intensity of plane wave from two dimensional dielectric normally distributed rough surface are derived, and the scattering intensity of a planar, rough surface of unit area

    然後從粗糙面散射kirchhoff標量近似理論出發，得到了平面波對高斯分佈的二維隨機粗糙面的相干散射和非相干散射強度表達式，並給出了單位面積粗糙面非相干散射的表達式。
  4. On the basis of theory analysis, the average transmitted light intensity ( correspond to dc value ) was determined as characteristic parameter of raw water using photoelectric method for monitoring the fluctuation of transmitted light and photometric dispersion analyzer ( pda ). the dc value was closely related to both particle concentration and surface area of sand clay simultaneously. the experimental results shows that there is an exponential function relation between dc and surface area of sand clay in unit volume water ( sp ) : dc = asbp in which a and b are empirical coefficients. then the formula of macromolecule flocculant dosage is found to be d = f ( dc ) = e ( dc ) f in which e and / are empirical coefficients and the average correlation coefficient equal to 0. 981. so the model of automatical control system of water treatment plant was established using the formula

    應用透光率脈動檢測技術和光散射顆粒粒度分析儀（ pda ） ，通過理論分析，將pda的輸出信號之一? ?平均透光強度（對應于dc值）作為原水的特性表徵參數， dc值可以同時反映顆粒濃度和比表面積因素的影響，試驗結果證明， dc值與單位體積水中泥沙顆粒總表面積s _ p之間具有很好的冪函數關系： dc = cs _ p ~ d ，式中c 、 d為經驗系數，進而得到了以dc值為參數的高分子絮凝劑投藥量公式： d = f （ dc ） = e （ dc ） ~ f ，式中： e 、 f為經驗系數，平均相關系數達0 . 981 ，利用所建立的公式，建立了前饋? ?后饋聯合控制的在線自動投藥模型。
  5. Considering the vectorial property of the time - average energy flow density, a new extensive definition of the light intensity has been proposed. it is expressed as the time average of the amount of energy which crosses in a unit time and a unit area, so it can be applied to measure quantity of the light intensity at any curved surface

    對于非傍軸標量光場能量傳輸規律的描述則必須考慮其能流密度的矢量特性，應當採用光強的精確定義? ?單位時間單位面積上所流過能量的時間平均值來精確地描述某一橫截面上的能流，這也與光強的實際測量值是一致的。
  6. In this paper, the contrast experiments and theoretical researches on frosting and defrosting on low - energy surface and common metal surface are carried out simultaneously. low - energy surface restrains the frosting of air cooler, and the adhesion work of unit - area frost on low - energy surface is smaller than that on common metal surface, so pneumatic defrosting becomes easier

    本文還對低能表面與普通金屬表面的結霜、除霜進行了對比實驗和理論研究：低能表面不僅能有效地抑制蒸發器的結霜，而且單位面積霜層粘附功w _ ~ *比普通令屬壁面小，因而氣動除霜更容易。
  7. By analyzing and synthesizing the experimental results many optimized experimental parameters are achieved. 4. in order to value the cleanliness of super - smooth surface before and after laser cleaning rapidly and precisely, a software is developed to automatically value it by processing the surface images, which can present key parameters about the surface cleanliness, such as maximal contaminant particle size, the total particle number per unit, the contaminant area per unit, etc

    超光滑光學基片表面激光清洗的機理和試驗研究西北工業大學碩士學位論文4 .對試驗中基片清洗前後sem照片進行統計分析，提取了基片表面上雜質微粒的圖像特徵，結合計一算機圖象處理技術，開發了表面清潔度自動評價軟體，實現了對超光滑基片表面上吸附的污染微粒進行自動識別和特徵分析，包括微粒的尺寸分佈、單位面積的微粒數、最大的微粒尺寸等重要參數。
  8. Textile floor coverings - determination of the mass per unit area of the use surface of needled floor coverings

    紡織地毯.針刺地毯使用表面單位面積重量的測定
  9. Determination of the area per unit mass of powders specific surface by means of gas adsorption. various readings of the basic method

    用氣體吸附法測定粉末特殊表面單位質量的面積.基本方法的各種儀器指示
  10. Determination of the area per unit mass of powders specific surface by means of gas adsorption. b. e. t. method : volumetric measurement of the adsorption of nitrogen at low temperatures

    用氣體吸附法測定粉末的單位質量面積比面積. bet法：低溫下氮吸附的容量測定法
  11. When calculating the wattage capabilities of a element, the unit of watts output per unit of radiating surface area is used

    當計算其能量時，要用到每單元輻射面積的輸出功率。
  12. When calculating the wattage capabilities of an element, the unit of watts output per unit of radiating surface area is used

    當計算其能量時，要用到每單元輻射面積的輸出功率。
  13. We know that air pressure is the weight of the column of air above a horizontal surface of unit area

    我們知道大氣壓力是水平表面每單位面積計所承受來自其上面空氣的重量。
  14. We taking the factor of generating heat - the multiple value pv of the loading of unit area p and the surface linear velocity v to determine the using limit

    一般情況下，我們用產生發熱的因素單位面積的負載p和表面線速度v的乘積pv值來決定使用的極限。
  15. York s latest model achieves a new record of cooling capacity through the use of a high cooling power optima heat exchanger which increases the cooling surface area resulting in higher cooling capacity while the physical size of the unit remains unchanged

    創下冷卻能量新記錄的york cooling king採用高冷卻能力的熱量轉換器，有關轉換器可在無需增加冷氣機體積的大前提下，提高冷卻空間，進而帶來前所未有的高冷卻能量。
  16. The total dislocation length per unit volume of material ; alternately, the number of dislocations that intersect a unit area of a random surface section

    材料單位體積內的位錯線的總長度，或者在一個隨機切面上的單位面積內切斷的位錯根數。
  17. . aluminium and aluminium alloys - anodizing - determination of mass per unit area surface density of anodic oxidation coatings - gravimetric method

    鋁和鋁合金.陽極氧化.陽極氧化塗層單位面積
  18. . en 12373 - 2 aluminium and aluminium alloys. anodizing. part 2 : determination of mass per unit area surface density of anodic oxidation coatings. gravimetric method

    鋁和鋁合金.陽極化.第2部分:陽極氧化物層單位面積質量的測定
  19. Force applied uniformly over a surface, measured as force per unit of area

    壓力；壓強統一作用於物體表面的力量，用每一單位面積上的壓力計量
  20. Pressure range applied per surface area unit

    壓力排列每一表面的區域單位應用
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