蚀刻法（Etching），在硬面上通过用酸切割线条来制作设计或图画。
首先，想想光蚀刻法的优点跟缺点。
First, consider the advantages and disadvantages of photolithography.
采用冰冻蚀刻法复制微绒毛膜膜内粒子形态。
The ice etching method was adapted to duplicate the form of grains in microvilli membrane.
方法：采用OD O扫描电镜法和冷冻蚀刻法行电镜观察。
Methods: ODO scanning electron microscopy (ODO SEM) and freeze-etching techniques were adopted for the study.
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