农机有65个大类、近4000种,如稻麦轮作就涵盖38道工序、十几个学科,插秧机、植保机、收割机行距规格不一,各敲各锣、各打各鼓,缺少标准化,施肥、打药、收割等环节浪费较大。
http://www.xinhuanet.com/fortune/2021-04/05/c_1127294486.htm
农机有65个大类、近4000种,如稻麦轮作就涵盖38道工序、十几个学科,插秧机、植保机、收割机行距规格不一,各敲各锣、各打各鼓,缺少标准化,施肥、打药、收割等环节浪费较大。
http://www.xinhuanet.com/fortune/2021-04/05/c_1127294486.htm
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