For the systematism and continuity of this research, extensive technique domains are involved in the content.

为了该项研究的系统性和连续性，本文的内容涵盖面较广。

youdao

For the systematism and continuity of this research, extensive technique domains are involved in the content.

为了该项研究的系统性和连续性，本文的内容涵盖面较广。

youdao