Through the investigation and study on production and supply capability of roughage in Daqing city, main effect factors of supply and utilization of roughage were determined.
英
美
释义
摘要通过调查和研究,分析了大庆市粗饲料的生产和供应能力,确定了影响大庆市粗饲料供应与利用的主要影响因素。
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