笔者采用半圆形皮钩并钻圆孔获得较好的效果。

The author has succeeded in performing this type of operation utilizing a semispherieal skin hook with a small round hole at …

youdao

笔者采用半圆形皮钩并钻圆孔获得较好的效果。

The author has succeeded in performing this type of operation utilizing a semispherieal skin hook with a small round hole at …

youdao