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Based on theories of grains size and dense packing,our research took oil-well cement with high-resistance to sulfur,Jiahua G,and hematite as basic materials and prepared a kind of cement slurry with density varying from 2.

文章以粒级级配和紧密堆积原理为理论依据,以嘉华G级高抗硫油井水泥和赤铁矿等为基本原料,通过复配不同颗粒大小的赤铁矿配制密度为2·2g/cm3～2·3g/cm3水泥浆。

The paper summarizes the formation,movement model of the debris and grain,the condition and mechanism of the oxides formation in the course of thermal wear of the metal composites.

综述了金属基复合材料热磨损过程中碎片颗粒的形成和运动模型,氧化物产生的条件及形成机理,分析了氧化物釉层形成的具体阶段及影响因素,并在介绍有关氧化物釉层研究现状的基础上,展望了未来金属基复合材料热磨损过程中有关氧化物研究的趋势。

Characteristics Analysis of Forces on Dispersal Particles in Swirling Flow Field;

旋流场内分散相颗粒的受力特性分析

Study on relationship between microcosmic fractal dimension of cement particles and macroscopical fluidity of cement;

水泥颗粒微观分维与宏观流动性关系的研究

Multi-scale analysis of acoustic emissions and measurement of particle mass flowrate in pipeline;

声波信号多尺度分解与固体颗粒质量流率的测定

SEM analysis of particles and its effects in arc ion plating;

电弧离子镀薄膜中的颗粒尺寸及其影响的扫描电镜观察

Research on design and application of image analysis system for micro particles;

显微颗粒图像分析系统的开发应用研究

Influences of vortices on impaction and distribution of small ash particles on rear side surface of boiler tube;

涡结构对小颗粒在圆管背风面碰撞分布的影响

The relationship of viscosity and properties of SiC_p particulates reinforced heat resistant alumina matrix composites;

SiC_p颗粒增强耐热铝基复合材料孔隙率与力学性能

Compressive properites and microstructure of in-situ TiB whisker and TiC particulate mixture-reinforced Ti composite;

原位TiB晶须和TiC颗粒复合增强Ti复合材料的压缩性能及微观结构

Study on the Resistance Characteristic of the Exhaust Particulate Filter for Diesel Engines;

柴油机排气颗粒过滤体阻力特性的试验研究