thickness by penetration 中文意思是什麼

thickness by penetration 解釋
穿透法測定的厚度
  • thickness : n 1 厚；粗；厚度；粗大。2 濃度，濃厚，黏稠。3 密度；稠密。4 模糊不清，多煙霧，混濁。5 愚笨；遲鈍...
  • by : adv 1 在側，在旁，在附近。2 （擱）在一邊，（放）到旁邊，（存）在一旁；收著。3 （由旁邊）經過，過...
  • penetration : n. 1. 浸透；透過；滲透力。2. 侵入，【軍事】突破；（空戰中）深入敵方的飛行。3. 貫穿；（炮的）貫穿力；（光學機械的）透視力。4. 看破，洞察（力），眼光。
  1. In this paper, high heat penetration into a moving particulate bed is described mathematically with a comprehensive heat and mass transfer model. the distribution of gas velocity and pressure, the temperature field of gas and solid in the moving particulate bed are examined for different conditions. the results show that thermal penetration into the moving packed - bed particles by fluid flow in porous media is high only in the position near the gas entrance. the thermal penetration thickness tends to increase with the fluid flow velocity and decrease with the particle moving velocity. in the region of thermal penetration, the porosity of solid bed has significant effect on gas field and pressure loss. it is feasible to reduce the gas pressure loss by a larger width / height packed bed in design and operation. the correspondence between thermal infection depth and particle bed height would be helpful to keep high oapacity of reactor and reduce the cost of operation

    針對移動顆粒床中物料層內的高溫氣體滲流傳熱現象，考慮滲流與傳熱的相互作用，採用局部非熱平衡假設建立了多孔介質滲流傳熱物理數學模型並進行了數值計算.研究了不同情況下床內填充多孔介質中的流速、氣固溫度和床層壓力損失.計算結果表明，高溫熱氣對移動床顆粒料層的熱滲透主要發生在滲流入口端區域，增大入口滲流速度以及減小床層物料下移速度將導致物料溫度沿床高慢速下降，熱滲透深度擴大，熱滲透作用區域內的物料溫度水平提高.在熱滲透作用區域，孔隙率對流場和壓力損失有很大的影響.研究結果對于移動顆粒床反應器的設計與運行具有一定的參考作用
  2. The micropcms were prepared by using in - suit polymerization with prepolymer of melamine - formaldehyde ( mf ) and charactized the properties such as shape, diameter distribution, thermal prosperities, strength, shell thickness and penetration property

    利用激光粒度分佈儀、 sem 、 dsc和tg分別研究了所得微膠囊的粒徑分佈、表面形態及熱性能的影響因素。
  3. The optical characteristics of metal silver film used as the reflective mirror of microcavity are calculated by characteristic matrix method and it is shown that the thickness of metal mirror affects not only the reflectivity but also the penetration depth and thus the cavity mode. this conclusion is confirmed by experiment

    通過特徵矩陣法計算了金屬薄膜在光學微腔中的性質，得到了金屬膜厚度不僅影響腔的品質因子，而且隨金屬膜厚度增加，由反射相移引起的等效穿透深度增加的結果，並在實驗上進行了驗證。
  4. Li chuan - liang, but this formula did not contain any parameter of well penetration. i. e. did not take the perforated thickness into account, it is hard to just perforate the partition board of well in fact, so a modification for it should be made on li ' s formula by adding a critical production rate contributed from the bottom of performed interval to the partition hoard

    但是實際油井通常不可能剛好射孔到隔板處，因此，此公式還可以進一步改進：即在油井臨界產量中附加一個由於射孔井段底端和隔板之間距離產生的油井臨界產量。
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