Two or three nuclei, and even nucleus chain were observed in some of the cells after confluence, showing a trend of muscle cell differentiation.

细胞汇合后少部分细胞出现双核或三核，甚至出现核链，显示肌细胞分化倾向。

youdao

Two combinable nucleus sentences can be joined to make a expansible sentence. Such expansion in natural language has its own Characteristics: twofold, threefold or even multifold.

具有可连接性的两个核心句能组合生成一个扩展句；扩展在自然语言中表现为双重、三重甚至更多重的扩展，具有自己的组合类型。

youdao