1)chakras['tʃʌkrəs],轮穴2)gear with holes on its transverse face,孔穴齿轮3)non-selective grave space,轮位墓穴4)hill-drop sowing wheel,穴播轮5)precision metering dibbler,精量穴播轮6)Proper Gap of Grinding Wheel,砂轮有效孔穴
用法和例句
Based on the dry farming mechanized seeding technology both at home and abroad,study is made on "dry farming precision hill-drop sowing wheel".