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.

 
  • 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。
今日热词
目录 附录 查词历史