Pore-size distribution function gives quantitative characterization of the pore sizes distribution while local porosity distribution function can offer qualitative analysis of the core's homo.
研究表明,连通孔隙体积比能够准确描述岩心中孔隙的整体连通性;孔隙尺寸分布函数可以定量表征岩心孔隙的分布;局部孔隙度分布函数不但可以对岩心中孔隙、岩石骨架的最大发育规模进行定量评价,而且能够对岩心均质性进行定性分析;测量单元标准差分布曲线可以为岩心均质性分析时测量单元边长的合理选取提供重要依据;借助局部渗流概率函数能够对岩心的连通性能及是否为各向同性作出合理的定性判断。
Based on MATLAB software, the cross sectional and longitudinal pore size distributions of granular ore media were calculated to investigate the evolution of granular ore media\'s pore size distribution during heap leaching and its influences on permeability.
根据X射线CT技术无损伤地探测细菌浸出前、后矿岩散体介质孔隙结构特征,利用MATLAB环境编写程序对矿岩散体介质颗粒间横向及纵向孔隙尺寸分布进行统计,研究细菌浸出过程中矿岩散体粒间孔隙尺寸演化规律及其对溶浸液渗流特性的影响。
The influences of parameters such as the sample pressure,nickel content and titanium powder size on pore size,pore uniformity and microstructure were studied.
以镍粉和钛粉为原料,采用自蔓延燃烧合成技术制备了多孔NiTi形状记忆合金,研究了压坯压力、镍含量、钛粉粒径等参数对合金孔隙尺寸、孔隙均匀性和显微组织的影响。
Extruded polypropylene foam with low open cell content, high cell density, small and uniform cell size was prepared via blending conventional linear polypropylene with a small amount of high melt strength polypropylene (HMSPP).
通过添加少量高熔体强度的支化聚丙烯,制备了开孔率低、泡孔密度大、泡孔尺寸小、泡孔分布均匀的聚丙烯挤出发泡材料;通过发泡材料断面的SEM分析,比较了成核剂类型和粒径对泡孔密度和尺寸的影响。
A more reasonable method, in which coating properties were evaluated through measuring the size of struts of green bodies and uniformity of slurry distribution in the struts of green bodies, was employed.
采用有机泡沫浸渍法制备碳化硅泡沫陶瓷时,通过对聚氨脂泡沫进行不同改性剂的表面处理来改善其挂浆性能,利用一种更加合理的表征方法,即测量挂浆后泡沫陶瓷素坯孔筋尺寸和表征孔筋挂浆后形貌来衡量挂浆性能。
Its main functions are maintaining borehole gage,improving drill string stability and protecting lower drill string from excessive wear.
其重要作用是保持钻头尺寸符合标准，提高钻杆稳定性，避免钻杆下部过于磨损。
out of gauge bit
尺寸不合标准的钻头
a bit with a cutting blade that can be adjusted to different sizes.
有可以调整的不同尺寸的钻头的切刃的钻头。
Size Reduction and NC Simulation of PDC Bit
PDC钻头的尺寸还原与数控加工仿真
Bolts with drilled or undersize heads shall not be used.
被钻孔或头部尺寸太小的螺栓不能使用。
he looked around for the right size bit.
他四周搜寻了一遍想找一根合适尺寸的钻头。
A projector is applied to inspect the drill geometry and dimensional accuracy.
例如钻头的几何形状及尺寸精度是以精密投影机检验。
Effects of Microstructure and Drill Geometry of High-speed Steel Drill's Using Life;
高速钢钻头微观组织和几何尺寸参数对使用寿命的影响
Influences of dimensional deviations on contact characteristics of threaded joint with double steps in drill collars
钻铤双台阶螺纹接头尺寸偏差对接触特性的影响
A twist drill is designed to drill a hole which has a particular size.
麻花钻用来钻削具有一定尺寸的孔。
Drill press. Dimensions and operating clearance area can be specified.
钻床。可以指定尺寸和操作净空面积。
Drill jig size calculation of the double inclined holes in the handle of YT 24 rock drill
YT24型凿岩机柄体双斜孔钻模尺寸计算
Parallel shank twist drills--Part 3: The types and dimesnions for parallel shank jobber series twist drills
直柄麻花钻第3部分:直柄麻花钻的型式和尺寸
Use to add an angular dimension with dimension arrows that point inward.
用于添加指向内部的尺寸箭头的角度尺寸。
Radial arm drilling machine. Dimensions and operating clearance area can be specified.
旋臂钻机。可以指定尺寸和操作净空面积。
Research and Design of Automatic Drilling and Riveting Machine for Large Thin-wall Workpiece Assembly
大尺寸薄壁工件自动钻铆机结构的研究与设计
Motor vehicles-Steering ball joints-Dimensions
GB/T13604-1992汽车转向球接头尺寸
Gib-head taper keys--Types and dimensions
GB/T1565-1979钩头楔键型式尺寸