And the author expounded the washing of papermaking felt by both mechanical and chemical methods.

并从机械方法洗涤和化学方法洗涤两个方面阐述了造纸毛毯的洗涤。

youdao

Future research should focus on comparisons between mechanical and chemical methods; the assessment of the association of methods, primary variables and costs should also receive future attention.

未来的研究应著重在比较机械性和化学性方法之间的不同，也要评估不同方法合并使用的成效，主要变因与成本也需要被评估。

youdao

As the researchers explain, current methods to fabricate high-quality graphene fall into two categories: mechanical approaches and chemical approaches.

正如研究人员解释的那样，当前制备高质量石墨烯的方法分为两类：机械法与化学法。

youdao