tree planting auger 中文意思是什麼
tree planting auger
解釋
植樹螺旋鉆挖坑用-
Trailed tree deep planting earth auger
牽引式深栽造林鉆孔機 -
Torsional vibration mathematical modeling of auger - bit principal axis of digging machine for tree planting and its solution
植樹挖坑機鉆頭主軸扭轉振動數學建模與求解
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