ridger相关论文
The feature of the boars head especially the forehead is used to root about for food,which is similar to the ridger in t......
Canadian Ginseng, Agriculture and Agr-Food Canada Research Branch Progress and Development of Farmin
Korean insam(ginseng) is recognized as an indigenous crop of Korea.Direct seeding and transplanting technology were intr......
本文通过对荣华二采区10...
为提高筑埂作业效率、减轻劳动强度,解决水田双向修筑埂机在切换作业方式过程中因手动控制精度不高、摆动较大而导致回转不平稳及......
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