而品质一致的外层，则是以羊毛、尼龙和棉花织成的毛毡，泡水收缩之后再加以烘干而制成。

To craft a consistent cover, wool, nylon and cotton are woven into a felt that is soaked, shrunk and dried.

youdao

而品质一致的外层，则是以羊毛、尼龙和棉花织成的毛毡，泡水收缩之后再加以烘干而制成。

To craft a consistent cover, wool, nylon and cotton are woven into a felt that is soaked, shrunk and dried.

youdao