Decrease of material particle size enhanced in-vitro protein digestibility of powder feed without conditioning.
物料粒度减小，能提高调质前粉状饲料的蛋白质体外消化率。
Testing results show that phosphogypsum material particle size distribution is more concentrated, graded poor, good permeability and high shear strength.
试验结果表明：磷石膏颗粒分布较为集中、级配较差、渗透性能良好且抗剪强度较高。
This article studies the main factors, which affect the extract ratio of aluminum oxide from lean alumina ore, such as the ratio of raw material, particle size, broiled temperature, and broiled time.
探讨了原料配比、粒度以及配料烧结温度、时间等工艺因素对贫铝矾土中氧化铝的提取效率的影响。
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