结论：骨髓间质干细胞分化为心肌细胞过程中，随培养时间延长及细胞密度增加逐渐形成闰盘样结构。

CONCLUSION: During the process of BMMSCs differentiating into cardiomyocytes, intercalated disc-like structure is gradually formed with increase in culture time and cell density.

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火层较底时，停止灰盘转动除渣，培养火层。

Fire layer is relatively bottom at the disk, stop rotating dregs, cultivate fire resistant layer.

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通过室内培养及室外盆栽实验，研究了砷在粘盘黄褐土、红壤(高肥力、低肥力)、水稻土上的生物学效应。

The present study has investigated biological effects of arsenic on clay pan yellow cinnamon soil, red soils (with high fertility and low fertility) and paddy soil.

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