fraction number
英 [ˈfrækʃn ˈnʌmbə(r)]
美 [ˈfrækʃn ˈnʌmbər]
馏分号码
双语例句
- Numerical experiments predicted average diameter, overall surface area, volume fraction and number density for the soot particles, and growth rate of naphthaline ( A4) and acetylene ( C2H2) on particle surface.
通过数值计算预报了碳黑颗粒平均粒径、总表面积、体积分数和数密度，以及萘（A4）和乙炔（C2H2）在颗粒表面的增长速率。 - Results show that the volume fraction influences the distributions of coordination number of single contact type and individual components.
结果表明，单一接触类型的配位数及分量配位数分布与体积组成有关。 - The key factors affecting the heat transfer enhancement are Reynolds number and volumetric fraction of micro-capsule, and the influence of Stefan number is negligible.
影响传热强化的主要因素为雷诺数及微胶囊的体积分数，斯蒂芬数的影响很小，可以忽略不计。 - By using this parameter, several factors which affect the compressibility were studied,( including) the initial fiber volume fraction, number of layers, variety of lubricated medium, way of layup and the variety of fiber.
提出了表征可压缩性的参数，考察了初始纤维体积分数、层数、润湿介质、铺层方式和纤维种类对单向纤维布可压缩性的影响。 - To reduce the state space, FPTA records the integer values of clocks together with the order of decimal fraction instead of the real number values.
FPTA只记录时钟值的整数部分，而用时钟序的概念来模拟表示时钟值小数部分的大小关系，从而减少生成的状态空间。 - But all of them put together kill only a fraction of the number destroyed by spiders.
然而把它们所杀死的昆虫全部加在一起也只相当于蜘蛛所消灭的一小部分。 - The result shows that it is important for friction reduction to increase micro-bubbles volume fraction inner boundary layer, while excessively large Reynolds Number is not good for the purpose.
结果显示：提高边界层内气泡浓度是减阻的重要因素，而来流雷诺数过高对减阻不利。 - The typical database sizes ( in terms of occupied space on the disk) for SOA/ BPM production databases are a small fraction of the space ( in terms of number of disk drives) needed for good performance.
SOA/BPM生产数据库的典型数据库大小（就磁盘上的占用空间而言）是良好性能所需的空间（就磁盘驱动器数量而言）的一小部分。 - And when scale coefficient a is fraction or irrational number, it should be calculated according to Z transform method, whose algorithm has also been given.
当尺度系数为分数甚或无理数时，必须采用频域Z变换法进行计算，并给出了该算法。 - In this paper, the Euler-Euler model was used to numerically analyze the influences of the particle volume fraction, the diameter of tube and the Reynolds number on the phase-change region.
采用双流体数学模型通过数值模拟发现：在层流条件下，双流体模型能够很好地模拟颗粒相体积分数、管径和Re对相变区间的影响。