The experience and measures to improve lousiness gradation for famous brands of raw silk are presented.

并介绍了提高名牌生丝茸毛分级度的经验和措施。

youdao

The experience and measures to improve lousiness gradation for famous brands of raw silk are presented.

并介绍了提高名牌生丝茸毛分级度的经验和措施。

youdao