First it needed a boundarystructure, i.e., a cell membrane to distinguish it from the outside world.
首先它需要一个界面结构，即一个区分它和外部世界的细胞膜。
2
First it needed a boundarystructure, i. e., a cell membrane to distinguish it from the outside world.
首先它需要一个界面结构，即一个区分它和外部世界的细胞膜。
3
Imaging with scanning transmission electron microscopy showed that the atomic grain-boundarystructure had dislocations that had very similar arrangement.