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1)  Particle gradation
粒度级配
1.
In the paper,the development in preparing ultrafine explosive at home and abroad is comprehensively analyzed,and a disquisitive content was set up by consulting the domestic and overseas correlative datum,that is NTO ultrafine and particle gradation with using supercritical CO2 anti-solvent.
本文的具体方案主要有两部分,即用GAS法超细化NTO及其粒度级配
2.
The present development of the explosive of thinning and particle gradation both hereand abroad is summarized in the paper.
本论文综述了目前国内外关于炸药细化技术及粒度级配的研究进展。
2)  grain graduation
粒度级配
1.
In order to guarantee that the products of spinelbased inert anode possess high volume density and low porosity, based on the theory of ball arrangement and started with grain composition of the raw material, the grain graduation of spinel was studied experimentally.
实验中根据不同的产品规格,设定了4种不同的主颗粒,通过测量振实密度以寻求最佳的粒度级配
3)  grain size distribution
粒度级配
1.
Based on the service conditions of the lance for molten iron pretreatment,this paper analyzes the grain size distribution and the selection of the micro-powder and admixtures,and probes into the influences of introducing the andalusite and carborundum on its thermal shock resistance and slag resistance.
根据铁水预处理喷枪的使用条件,分析了其耐火浇注料的粒度级配以及微粉和外加剂的选用问题,探讨了引入红柱石、碳化硅对抗热震性和抗渣侵蚀性的影响。
4)  coarseness of grading
级配粒度
5)  particle,size curve
粒度级配曲线
6)  sand gradation
砂子粒度级配
补充资料:粒度级配
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性质:又称(粒度)级配。由不同粒度组成的散状物料中各级粒度所占的数量。常以占总量的百分数来表示。由不间断的各级粒度所组成的称连续级配;只由某几级粒度所组成的称间断级配。合理的颗粒级配是使配料获得低气孔率的重要途径。在耐火材料的生产中根据原料特性、工艺条件和产品性能来确定合理的颗粒级配。具有合理颗粒级配的泥料,既有利于成形,也有利于坯体的烧结,并可获得密度较高的制品。对于密度和气孔率等要求不同的耐火制品,可通过调整颗粒级配的方法而获得。当物料破碎后,只控制临界粒度,不再对其进行粒度分级,也不再调整其粒度组成时,称自然粒度。

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