In this paper some principles must be complied with in mast planning of dairy farm are introduced in detail such as site selection, scale control and herd division.是什么意思_In this paper some principles must be complied with in mast planning of dairy farm are introduced in detail such as site selection, scale control and herd division.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句