摘要：本课题设计的主要内容是饲料加工厂的立式混合机。

Abstract: the design issues are the main contents of feed processing plants in the vertical mixer.

youdao

摘要：本课题设计的主要内容是饲料加工厂的立式混合机。

Abstract: the design issues are the main contents of feed processing plants in the vertical mixer.

youdao