研究结果表明：晶种的加入能有效地促进刚玉磨料的烧结，细化晶粒，使晶粒粒度分布范围较窄；
The results indicated that the introduction of crystal seed was effective to promote the sintering of new ceramic corundum abrasive and decrease its crystal size;
研究结果表明：晶种的加入能有效地促进刚玉磨料的烧结，细化晶粒，使晶粒粒度分布范围较窄；
The results indicated that the introduction of crystal seed was effective to promote the sintering of new ceramic corundum abrasive and decrease its crystal size;
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