If your looks characteristic isn't manifest, choosing the spectacle frame is thin, whether your face characteristic is emphatic, choose then that the spectacle frame is thicker.
如果你的相貌特征不明显，选择镜框细的，如果你的面部特征突出，则选择镜框较粗的。
The nexine is thicker, but the structure of the bacula becomes hardly differentiation, it looks like sponge as a whole.
外壁内层较为厚实 ，但柱状结构分化不明显 ，整体呈海绵状 ；
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