并根据我国的国情，结合中国生态农业的特点，作了详细的阐述。

Furthermore, in the light of actual conditions of China and the characteristics of ecological agriculture in this country, a full exposition is made on this point.

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阐述了在我国建设“农业数字化期刊群”的必要性和相关问题。

This paper has expatiated on the necessity and relevant issues to construct "agricultural digital periodical group" in China.

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本文从介绍我国开发“绿色食品”的概况入手，阐述了保护农业生态环境对开发“绿色食品”的重要性和必要性。

This paper strives to introduce and explain the importance and necessity of the "green food" in protecting the agro-ecological environment by means of developing "green food" in Sichuan.

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