Methods: ODO scanning electron microscopy (ODO SEM) and freeze-etching techniques were adopted for the study.

方法：采用OD O扫描电镜法和冷冻蚀刻法行电镜观察。

youdao

Methods: ODO scanning electron microscopy (ODO SEM) and freeze-etching techniques were adopted for the study.

方法：采用OD O扫描电镜法和冷冻蚀刻法行电镜观察。

youdao