耕地地力评价信息系统的设计与实现是本文的主要内容。

The main content of this paper is designing and realizing the information system for cultivated land.

youdao

耕地地力评价信息系统的设计与实现是本文的主要内容。

The main content of this paper is designing and realizing the information system for cultivated land.

youdao