当他想过滤掉水继续试验的时候，他发现留在过滤纸上的不是羟基磷灰石粉末，而是形成了一张薄膜。
While he wanted to filter out the water and continue the experiment, he found that instead of getting hydroxyapatite powder on the filter paper, a film formed on the paper.
低温下进行水热处理，羟基磷灰石晶体在氧化膜的表面沉积。
Hydroxyapatite crystals were precipitated on film surfaces at low temperature hydrothermal treatment.
本文主要采用化学沉淀法和水热法合成羟基磷灰石粉体及多孔羟基磷灰石块体。
In this paper, hydroxyapatite powders and porous hydroxyapatite blocks were synthesised by chemical precipitation and hydrothermal method.
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