earth screw 中文意思是什麼
earth screw
解釋
取土樣的麻花鉆-
Testing method for the performance of full screw earth auger
長螺旋鉆孔機性能試驗方法 -
The front earth pressure value could also be controlled in the range of set value by adjusting the advancing speed, screw conveyor revolving speed and cutting wheel revolving speed, which lead to reduce ground deformation
通過實時調節控制推進速度、螺旋輸送機轉速以及刀盤轉速,可以控制正面土壓力在設定范圍內,從而有效減少地表變形。
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