天然橡胶是否是线型链状分子的聚合物，这个问题已经解决了。

The problem whether natural rubber is a polymer with linear chain molecules has been solved.

youdao

天然橡胶是否是线型链状分子的聚合物，这个问题已经解决了。

The problem whether natural rubber is a polymer with linear chain molecules has been solved.

youdao