hole density
英 [həʊl ˈdensəti]
美 [hoʊl ˈdensəti]
孔隙密度，空穴密度（浓度）
双语例句
- Design on pressure head and die mold of extruder for block with high hole density
高孔洞率砌块挤出机头及机口模具的设计 - When the surface hole recombination velocity and defect density is bigger, the length of nanowire should not be too long.
当表面复合速率和体缺陷密度较大时，纳米柱的长度不宜过大。 - The analysis of dry hole density log experiment
干孔密度测井实验分析 - In addition to the total hole density in the CuO_2 plane, the partition of the holes between Cu and O orbitals is an important parameter in determining T_c.
除了CuO2面上的空穴密度总数外，Cu和O轨道上的空穴数的分布也是决定Tc的一个重要参数。 - Lithology Determination of Rocks from CCSD 100-2000m Main Hole by Magnetic Susceptibility and Density Using Discriminant Function Analysis
磁化率和密度对中国大陆科学钻探主孔100～2000m岩石类型的判别 - Tungsten skeleton with suitable hole density can ensure W-Cu materials in homogeneity of percolation copper organization.
钨骨架具有合适的孔隙度是W-Cu材料获取均匀一致的渗铜组织的重要条件。 - Two equations of convection diffusion for the electron density and hole density are treated by implicit explict multistep finite element methods;
用隐式-显式多步有限元法处理电子密度和空洞密度满足的两个对流-扩散方程； - The parameters of porous Alumina membrane, such as aperture, hole density and aspect ratio, membrane thickness, had been effected by many factors mentioned above.
多孔铝膜的膜参数（孔径、孔密度、孔的纵横比和膜厚）和孔排布的规律性受到诸多因素的影响和制约。 - There are many differences in grain size, gas hole ratio, density, production cost, technology and electric properties by different making methods.
二种方法制备的材料在粒度、气孔率、密度、成本、工艺性和电性能诸方面都存在明显的差异。 - The similarity of the charge form factors observed experimentally between~ 3He and~ 3H and the central hole of~ 3He charge density are in conflict with traditional nuclear structure theory.
实验上观察到的~3He和~3H电荷形状因子的类似性，以及~3He电荷密度的中空现象是与传统的原子核结构理论的预言相矛盾的。 - To solve this problem, Shengli Logging Company has developed a 114 mm big hole& high perforating density and sand control perforator.
胜利油田测井公司开发研制出一种114mm大孔径高孔密防砂射孔器，能在射孔的同时起到防砂的作用。 - By studying the heat transfer characteristics through experiments, an experiential formula of the equivalent heat transfer coefficient was established including the influences of the inclination, the hole number, the hole diameter and the heat flux density.
在实验基础上建立了考虑开式二相热虹吸管倾角、开孔数、孔径及热流密度等影响的当量传热系数的经验公式。 - In the deep hole section, high mud density and long drilling cycle result in severe casing abrasions as well as difficult mud maintenances.
深部井段由于钻井液密度高，钻井周期长，不但给钻井液的维护和处理带来了极大的困难，而且造成钻具、套管磨损严重。 - , Applications of 114 nun Big Hole& High Perforating Density and Sand Control Perforator in Shengli Oilfield
114mm大孔径高孔密防砂射孔器在胜利油田的应用 - It is confirmed that the hole density in the alloy increases with the increase of the temperature.
证实合金中空穴浓度随温度的增加而增加。 - The random factors were the canopy, slope degree, vegetation type, tree height, shrub height, tree stump height, tree hole density and human disturbance.
而郁闭度、坡度、植被类型、乔木高度、灌木高度、树桩高度、树洞密度、人为干扰的影响不明显。 - The electron self-interaction present in local-density theory can be removed by assuming a nonlocal hole in the electron density to generate the exchange-correlation energy.
在电子密度中，可以假定存在一种能产生交换相关能的非局域空穴。通过该假定可将存在于局域密度理论中的电子自相互作用消除。 - The hole density increases with the increase of the Mn composition.
发现空穴浓度随Mn组分的增加而迅速增加。 - Through analysis, it is found that the suction radius has relation to the suction hole, pressure, density of the seeds and size of the seeds.
通过分析发现，滚筒上吸孔的吸种半径与吸孔直径、负压大小、种子密度及种子大小有关。 - The morphological re-sults showed that branch skin hole density, length and blade stoma density, length and width of susceptible varieties were larger than those of resistant varieties.
结果表明：形态结构抗性方面，感病品种的皮孔密度和长度及气孔密度、长度和宽度都明显高于抗病品种，抗、感品种间皮孔、气孔的排列方式也存在一定差异。 - The discrete time approximations of the electron and hole density equations are established by using the Laplace modified forward difference and the characteristic method, and are solved in spaces possessing reproducing kernels.
采用Laplace修正的向前差分和特征线法对载流子浓度方程施行时间离散近似，并在具有再生核的函数空间中求解。 - By solving the mechanical model, the casing bearing forces can be obtained under the conditions of different hole types, mud density, casing suspension length and casing running ways.
通过对模型的求解，可以得到不同井眼类型、泥浆密度、悬浮长度以及不同下套管方案下的套管受力，为大位移井下套管作业提供了力学参考。 - The Mn_I atoms not only compensate the holes, and reduce the hole density of ( Ga, Mn) As, but also deactivate Mn_ ( Ga) atoms.
MnI的存在一方面补偿了（Ga，Mn）As中的空穴，降低了空穴浓度； - Depending the injected hole flux density, hole energy and the gate voltage, its charge breakdown is much larger than that of F N stress.
其击穿电荷要比F-N隧穿的击穿电荷大得多，栅氧化层的击穿电荷量与注入的空穴流密度和注入时空穴具有的能量以及栅电压有关。 - Finite element modeling ( FEM), artificial neural network ( ANN) and genetic algorithm ( GA) were used to proceed sheet forming processing parameter optimization, and the optimum processing parameters such as the blank holding force and drawing hole relative density were obtained.
采用数值模拟、人工神经网络和遗传算法进行板材成形工艺参数优化，得到了最优化的压边力和拉深孔相对密度等拉深工艺参数。 - The pre-existed oxide film on aluminum significantly changed the subsequent oxidation characteristic curve in oxalic acid, the peak voltage of oxide film increased obviously, the pore size and particle size of alumina film also increased, but the hole density decreased. 2.
硫酸预氧化膜覆盖下铝试样在草酸电解液中进行阳极氧化时，不仅其特征曲线明显发生变化，峰值电压与氧化膜稳定生长电压明显增大，而且氧化铝膜的孔径和粒径尺寸增大，孔密度有所减小。 - However, the technical difficulty of the hole density perforating.
然而，高孔密射孔器的技术难度相对较大。 - Effect potential and free energy of sine-Gordon-Thirring model are derived on black hole background, energy density fluctuation of Fermi matter are calculated in weak and strong coupling cases. Influence of gravitational field perturbation for Fermi matter is also analyzed. 3.
在黑洞背景下推导了sine-Gordon-Thirring模型的自由能与等效势，计算了弱耦合和强耦合情况下费米物质的能量密度，分析了引力场扰动对费米物质能量密度涨落的影响。