The surface defect appeared mainly as air bubbles and ferroferric oxide drops which centred around the lower outer - field portion of the stoneware cup.
表观缺陷主要表现为釉泡和氧化铁颗粒，且其集中于杯体下部外侧面。
The composition of nano granulated ferroferric oxide and nano lamellar hydroxyapatite is realized, and the ferroferric oxide has uniform distribution and no agglomeration.
实现了纳米颗粒状四氧化三铁和纳米层片状羟基磷灰石的复合，四氧化三铁分布均匀，无团聚。
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