auger drill

基本解释

The speed of soil delivering and resistance of auger drill are analyzed theoretically and their formulae are presented.
对螺旋钻具输土速度与阻力进行理论分析，给出了输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.
结合工程实例，论证了旋挖钻机的特点及在特殊地层的施工缺陷。
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.
方法随机选择有适应症的重症脑出血病例，随机选择两种方法之一行血肿穿刺治疗。