hydroxyapatite crystal
... 羟磷灰石 hydroxylapatite 羟磷灰石结晶 hydroxyapatite crystal 羟磷铍钙石 hydroxyl herderite ...
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羟基磷灰石结晶 hydroxyapatite crystal
羟基磷灰石结晶沉积症 hydroxyapatite crystal deposition disease
·2,447,543篇论文数据，部分数据来源于NoteExpress
这说明虽经几千年地下埋藏，古象牙碳羟磷灰石晶体结构不仅没有破坏，而且结晶度还有所提高。
These results show that the crystallinity of the ancient ivory was higher although it had been buried for several thousand years.
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