swing brake drum是什么意思

用法例句

On the basis of analysis of organize structual of rabbit skin, several key problems of drum tanning were solved.

本文在剖析兔皮组织结构的基础上,解决了转鼓鞣制兔皮生产中的几个关键性问题,制定了转鼓鞣制兔皮新工艺。