This paper analyses current domestic situation in new-type material exploitation and some major research projects.

文章分析了我国新型原料丝开发的现状及主要研究的课题。

youdao

This paper analyses current domestic situation in new-type material exploitation and some major research projects.

文章分析了我国新型原料丝开发的现状及主要研究的课题。

youdao