auger drill

基本解釋

The speed of soil delivering and resistance of auger drill are analyzed theoretically and their formulae are presented.
對螺旋鉆具輸土速度與阻力進行理論分析，給出了輸土速度公式和阻力公式。
Combined with engineering example the characteristics of auger drill and construction defects for special strata are discussed.
結合工程實例，論證了旋挖鉆機的特點及在特殊地層的施工缺陷。
Methods Randomly selecting severely intracerebral hemorrhagic cases that were proper to hematoma puncture. Using auger to drill into brain, then drawing and aspirating the hematoma.
方法隨機選擇有適應癥的重癥腦出血病例，隨機選擇兩種方法之一行血腫穿刺治療。