However, after immersion in simulated body fluid （SBF）, the weight continuously increased because Ca2+ and PO43- ions deposited on the surface and the internal surfaces of the material pores.
当其浸入模拟体液后,由于Ca2+和PO43-离子在材料的内外表面不断沉积使其重量不断增加。
参考来源 - 纳米羟基磷灰石/聚乙烯醇/明胶复合材料的研究Thecoating surfaces are covered by carbonate apatite layer after being immersed in SBF for 7days. The cells grow well on the surface of coatings and tightly contact with the coatingssurface.
复合涂层在模拟体液中浸泡7天后,涂层表面完全被碳磷灰石覆盖。
参考来源 - 水热电化学沉积羟基磷灰石涂层的工艺、结构和性能研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Control on harmful elements such as K, Na, f, s in smelting is short of effective measures, which results in BF capacity factor low, BF process not smoothly and serious environment pollution.
对冶炼中有害元素钾、钠、氟、硫的控制还缺乏有效手段，致使出现高炉利用系数偏低、高炉不畅和造成环境的严重污染。
In your opinion, what"s the best and worst way of breaking up with your BF/GF?"
在你看来，什么样的分手方式是最佳的？哪些分手方式是最差的呢？
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