英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:

porosity    


安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Porosity - Wikipedia
    Porosity or void fraction is a measure of the void (i e "empty") spaces in a material, and is a fraction of the volume of voids over the total volume, between 0 and 1, or as a percentage between 0% and 100%
  • 孔隙率_百度百科
    孔隙率(porosity),是指块状材料中孔隙体积与材料在自然状态下总体积的百分比,或多孔介质内的微小空隙的总体积与该多孔介质的总体积的比值。 孔隙率包括真孔隙率,闭孔隙率和先孔隙率。 与材料孔隙率相对应的另一个概念,是材料的密实度。
  • porosity - 搜索 词典
    1 Porosity is usually derived from the sonic or density, with the proper matrix and fluid parameters for the formations to be encountered 如果 遇到 合适 的 岩层 流体 参数, 孔隙 度 通常 通过 声波 测 井 或 密度 测 井 计算。
  • 什么是孔隙率? - 知乎 - 知乎专栏
    孔隙率 (Porosity)指散粒状材料表观体积中材料内部的孔隙占总体积的比例。 孔隙率包括真孔隙率、闭空隙率和先空隙率。 孔隙率与多孔介质固体颗粒的形状、结构和排列有关;是影响多孔介质内流体传输性能的重要参数。
  • Porosity - an overview | ScienceDirect Topics
    Porosity is a volumetric property of porous media, which indicates the volumetric ratio of the void space (pores, fractures, cracks) occupied in the unit volume of the porous medium Therefore, the porosity of a reservoir is a measure of the ability of a reservoir to store fluid (oil, gas, and water) Porosity φ is determined, as follows:
  • Porosity Explained: Definition, Types, and Importance
    Porosity is an important property of a material, describing the ratio of voids to the total volume This property is important in many fields, including geology, materials science, environmental studies, and engineering
  • Reading: Porosity and Permeability | Geology - Lumen Learning
    In a soil or rock the porosity (empty space) exists between the grains of minerals In a material like gravel the grains are large and there is lots of empty space between them since they don’t fit together very well
  • Porosity - Soil Ecology Wiki
    Porosity is concentration of the spaces between particles of a material In soil science, pore spaces are indicative of soil types, composition, and particle size
  • 孔隙率 - 维基百科,自由的百科全书
    孔隙率 多孔陶瓷 孔隙率 (英語: Porosity)或孔隙分数是表征材料的孔隙部分的物理量,定义为孔隙的体积与材料总体积的比率,所以总是在0到1之间,用百分数表示,为0到100%之间 [1]。
  • Characterization and Analysis of Porosity and Pore Structures
    In a hydrologic sense we have two types of porosity—effective or open porosity that permits flow of fluids or volatiles and ineffective or closed porosity that does not





中文字典-英文字典  2005-2009