细胞游离面部分微绒毛的微丝形成中心根并深入胞质。
The microfilaments of some microvilli formed core rootlets and entered into the cytoplasm.
阶梯群内形成了一条通畅的几何图案状小径，形成中心循环。
A fully accessible path is geometrically woven into the stairs to become a central circulation feature.
根据旋弧弧根处熔化液池的受力分析，在理论上建立了能描述旋弧喷溅侵蚀特性的函数关系式。此理论关系表明，在无外磁场作用下，液池中心受力最大，将形成中心喷溅；
According to the analysis of the applied forces on the molten poor at arc root the theoretical function in which the arc erosion of metal droplet ejection can be characterized was founded.
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