Special brass synchronizer tooth ring wear ability is poor in using.
特种黄铜同步器齿环在应用中耐磨性差。
Some of them are funny design while some of them are ridiculous, especially Human Tooth Ring.
其中有些是有趣的设计，而另一些就有些荒唐，尤其是人齿戒指。
It do not have the inherent tradition artificial tooth institute metal snap ring.
它没有传统义齿所固有的金属卡环。
It do not have the inherent tradition artificial tooth institute metal snap ring.
它没有传统义齿所固有的金属卡环。
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