本文对黑龙江垦区农业机械总动力进行了预测分析。

The total powers of agriculture machine in Heilongjing land reclamation system were predicted and analyzed in this article.

youdao

本文对黑龙江垦区农业机械总动力进行了预测分析。

The total powers of agriculture machine in Heilongjing land reclamation system were predicted and analyzed in this article.

youdao